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| — | math-public:kv_ur_null_d [2016/07/04 18:14] (текущий) – создано labreslav |
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| | | 1. | $-169x^2+208x-64=0; $ | $\dfrac{8}{13}$ | |
| | | 2. | $-225x^2+60x-4=0; $ | $\dfrac{2}{15}$ | |
| | | 3. | $169x^2+26x+1=0; $ | $-\dfrac{1}{13}$ | |
| | | 4. | $-81x^2+72x-16=0; $ | $\dfrac{4}{9}$ | |
| | | 5. | $-16x^2+136x-289=0; $ | $\dfrac{17}{4}$ | |
| | | 6. | $-36x^2+12x-1=0; $ | $\dfrac{1}{6}$ | |
| | | 7. | $-64x^2+64x-16=0; $ | $\dfrac{1}{2}$ | |
| | | 8. | $4x^2+72x+324=0; $ | $-9$ | |
| | | 9. | $169x^2+156x+36=0; $ | $-\dfrac{6}{13}$ | |
| | | 10. | $121x^2+374x+289=0; $ | $-\dfrac{17}{11}$ | |
| | | 11. | $-25x^2+150x-225=0; $ | $3$ | |
| | | 12. | $-400x^2+360x-81=0; $ | $\dfrac{9}{20}$ | |
| | | 13. | $-169x^2+416x-256=0; $ | $\dfrac{16}{13}$ | |
| | | 14. | $256x^2+512x+256=0; $ | $-1$ | |
| | | 15. | $-9x^2+6x-1=0; $ | $\dfrac{1}{3}$ | |
| | | 16. | $256x^2+288x+81=0; $ | $-\dfrac{9}{16}$ | |
| | | 17. | $-144x^2+192x-64=0; $ | $\dfrac{2}{3}$ | |
| | | 18. | $4x^2+28x+49=0; $ | $-\dfrac{7}{2}$ | |
| | | 19. | $-324x^2+72x-4=0; $ | $\dfrac{1}{9}$ | |
| | | 20. | $25x^2+170x+289=0; $ | $-\dfrac{17}{5}$ | |
| | | 21. | $81x^2+126x+49=0; $ | $-\dfrac{7}{9}$ | |
| | | 22. | $-81x^2+162x-81=0; $ | $1$ | |
| | | 23. | $-225x^2+540x-324=0; $ | $\dfrac{6}{5}$ | |
| | | 24. | $-49x^2+14x-1=0; $ | $\dfrac{1}{7}$ | |
| | | 25. | $-400x^2+600x-225=0; $ | $\dfrac{3}{4}$ | |
| | | 26. | $-9x^2+42x-49=0; $ | $\dfrac{7}{3}$ | |
| | | 27. | $-121x^2+352x-256=0; $ | $\dfrac{16}{11}$ | |
| | | 28. | $-81x^2+252x-196=0; $ | $\dfrac{14}{9}$ | |
| | | 29. | $81x^2+54x+9=0; $ | $-\dfrac{1}{3}$ | |
| | | 30. | $25x^2+100x+100=0; $ | $-2$ | |
| | | 31. | $361x^2+152x+16=0; $ | $-\dfrac{4}{19}$ | |
| | | 32. | $324x^2+576x+256=0; $ | $-\dfrac{8}{9}$ | |
| | | 33. | $-36x^2+108x-81=0; $ | $\dfrac{3}{2}$ | |
| | | 34. | $-196x^2+420x-225=0; $ | $\dfrac{15}{14}$ | |
| | | 35. | $x^2+40x+400=0; $ | $-20$ | |
| | | 36. | $196x^2+112x+16=0; $ | $-\dfrac{2}{7}$ | |
| | | 37. | $9x^2+120x+400=0; $ | $-\dfrac{20}{3}$ | |
| | | 38. | $-361x^2+380x-100=0; $ | $\dfrac{10}{19}$ | |
| | | 39. | $169x^2+286x+121=0; $ | $-\dfrac{11}{13}$ | |
| | | 40. | $100x^2+160x+64=0; $ | $-\dfrac{4}{5}$ | |
| | | 41. | $-4x^2+56x-196=0; $ | $7$ | |
| | | 42. | $49x^2+112x+64=0; $ | $-\dfrac{8}{7}$ | |
| | | 43. | $36x^2+156x+169=0; $ | $-\dfrac{13}{6}$ | |
| | | 44. | $-81x^2+216x-144=0; $ | $\dfrac{4}{3}$ | |
| | | 45. | $-361x^2+570x-225=0; $ | $\dfrac{15}{19}$ | |
| | | 46. | $400x^2+600x+225=0; $ | $-\dfrac{3}{4}$ | |
| | | 47. | $-36x^2+180x-225=0; $ | $\dfrac{5}{2}$ | |
| | | 48. | $361x^2+646x+289=0; $ | $-\dfrac{17}{19}$ | |
| | | 49. | $64x^2+32x+4=0; $ | $-\dfrac{1}{4}$ | |
| | | 50. | $-361x^2+114x-9=0; $ | $\dfrac{3}{19}$ | |
| | | 51. | $-225x^2+90x-9=0; $ | $\dfrac{1}{5}$ | |
| | | 52. | $-100x^2+120x-36=0; $ | $\dfrac{3}{5}$ | |
| | | 53. | $256x^2+192x+36=0; $ | $-\dfrac{3}{8}$ | |
| | | 54. | $324x^2+540x+225=0; $ | $-\dfrac{5}{6}$ | |
| | | 55. | $-16x^2+72x-81=0; $ | $\dfrac{9}{4}$ | |
| | | 56. | $-64x^2+80x-25=0; $ | $\dfrac{5}{8}$ | |
| | | 57. | $-x^2+24x-144=0; $ | $12$ | |
| | | 58. | $-225x^2+240x-64=0; $ | $\dfrac{8}{15}$ | |
| | | 59. | $-x^2+10x-25=0; $ | $5$ | |
| | | 60. | $400x^2+240x+36=0; $ | $-\dfrac{3}{10}$ | |
| | | 61. | $121x^2+220x+100=0; $ | $-\dfrac{10}{11}$ | |
| | | 62. | $-289x^2+34x-1=0; $ | $\dfrac{1}{17}$ | |
| | | 63. | $100x^2+80x+16=0; $ | $-\dfrac{2}{5}$ | |
| | | 64. | $324x^2+288x+64=0; $ | $-\dfrac{4}{9}$ | |
| | | 65. | $-121x^2+308x-196=0; $ | $\dfrac{14}{11}$ | |
| | | 66. | $-9x^2+72x-144=0; $ | $4$ | |
| | | 67. | $196x^2+56x+4=0; $ | $-\dfrac{1}{7}$ | |
| | | 68. | $16x^2+120x+225=0; $ | $-\dfrac{15}{4}$ | |
| | | 69. | $196x^2+168x+36=0; $ | $-\dfrac{3}{7}$ | |
| | | 70. | $-400x^2+80x-4=0; $ | $\dfrac{1}{10}$ | |
| | | 71. | $-49x^2+238x-289=0; $ | $\dfrac{17}{7}$ | |
| | | 72. | $-400x^2+720x-324=0; $ | $\dfrac{9}{10}$ | |
| | | 73. | $256x^2+96x+9=0; $ | $-\dfrac{3}{16}$ | |
| | | 74. | $-256x^2+480x-225=0; $ | $\dfrac{15}{16}$ | |
| | | 75. | $400x^2+480x+144=0; $ | $-\dfrac{3}{5}$ | |
| | | 76. | $9x^2+84x+196=0; $ | $-\dfrac{14}{3}$ | |
| | | 77. | $-100x^2+320x-256=0; $ | $\dfrac{8}{5}$ | |
| | | 78. | $-9x^2+108x-324=0; $ | $6$ | |
| | | 79. | $-361x^2+228x-36=0; $ | $\dfrac{6}{19}$ | |
| | | 80. | $-144x^2+24x-1=0; $ | $\dfrac{1}{12}$ | |
| | | 81. | $25x^2+80x+64=0; $ | $-\dfrac{8}{5}$ | |
| | | 82. | $64x^2+272x+289=0; $ | $-\dfrac{17}{8}$ | |
| | | 83. | $-x^2+26x-169=0; $ | $13$ | |
| | | 84. | $-64x^2+256x-256=0; $ | $2$ | |
| | | 85. | $-289x^2+510x-225=0; $ | $\dfrac{15}{17}$ | |
| | | 86. | $-169x^2+468x-324=0; $ | $\dfrac{18}{13}$ | |
| | | 87. | $-324x^2+504x-196=0; $ | $\dfrac{7}{9}$ | |
| | | 88. | $324x^2+468x+169=0; $ | $-\dfrac{13}{18}$ | |
| | | 89. | $144x^2+336x+196=0; $ | $-\dfrac{7}{6}$ | |
| | | 90. | $256x^2+448x+196=0; $ | $-\dfrac{7}{8}$ | |
| | | 91. | $9x^2+30x+25=0; $ | $-\dfrac{5}{3}$ | |
| | | 92. | $9x^2+108x+324=0; $ | $-6$ | |
| | | 93. | $-81x^2+306x-289=0; $ | $\dfrac{17}{9}$ | |
| | | 94. | $144x^2+48x+4=0; $ | $-\dfrac{1}{6}$ | |
| | | 95. | $-256x^2+576x-324=0; $ | $\dfrac{9}{8}$ | |
| | | 96. | $25x^2+110x+121=0; $ | $-\dfrac{11}{5}$ | |
| | | 97. | $289x^2+612x+324=0; $ | $-\dfrac{18}{17}$ | |
| | | 98. | $-4x^2+68x-289=0; $ | $\dfrac{17}{2}$ | |
| | | 99. | $256x^2+480x+225=0; $ | $-\dfrac{15}{16}$ | |
| | | 100. | $144x^2+432x+324=0; $ | $-\dfrac{3}{2}$ | |
| | | 101. | $-100x^2+220x-121=0; $ | $\dfrac{11}{10}$ | |
| | | 102. | $-64x^2+160x-100=0; $ | $\dfrac{5}{4}$ | |
| | | 103. | $-x^2+40x-400=0; $ | $20$ | |
| | | 104. | $4x^2+24x+36=0; $ | $-3$ | |
| | | 105. | $144x^2+120x+25=0; $ | $-\dfrac{5}{12}$ | |
| | | 106. | $-49x^2+266x-361=0; $ | $\dfrac{19}{7}$ | |
| | | 107. | $289x^2+544x+256=0; $ | $-\dfrac{16}{17}$ | |
| | | 108. | $-169x^2+312x-144=0; $ | $\dfrac{12}{13}$ | |
| | | 109. | $169x^2+260x+100=0; $ | $-\dfrac{10}{13}$ | |
| | | 110. | $-400x^2+120x-9=0; $ | $\dfrac{3}{20}$ | |
| | | 111. | $400x^2+120x+9=0; $ | $-\dfrac{3}{20}$ | |
| | | 112. | $121x^2+22x+1=0; $ | $-\dfrac{1}{11}$ | |
| | | 113. | $-100x^2+140x-49=0; $ | $\dfrac{7}{10}$ | |
| | | 114. | $x^2+24x+144=0; $ | $-12$ | |
| | | 115. | $-289x^2+646x-361=0; $ | $\dfrac{19}{17}$ | |
| | | 116. | $x^2+20x+100=0; $ | $-10$ | |
| | | 117. | $25x^2+160x+256=0; $ | $-\dfrac{16}{5}$ | |
| | | 118. | $-25x^2+120x-144=0; $ | $\dfrac{12}{5}$ | |
| | | 119. | $-25x^2+90x-81=0; $ | $\dfrac{9}{5}$ | |
| | | 120. | $-324x^2+468x-169=0; $ | $\dfrac{13}{18}$ | |
| | | 121. | $-361x^2+304x-64=0; $ | $\dfrac{8}{19}$ | |
| | | 122. | $81x^2+36x+4=0; $ | $-\dfrac{2}{9}$ | |
| | | 123. | $-169x^2+52x-4=0; $ | $\dfrac{2}{13}$ | |
| | | 124. | $-x^2+38x-361=0; $ | $19$ | |
| | | 125. | $25x^2+140x+196=0; $ | $-\dfrac{14}{5}$ | |
| | | 126. | $-400x^2+760x-361=0; $ | $\dfrac{19}{20}$ | |
| | | 127. | $100x^2+380x+361=0; $ | $-\dfrac{19}{10}$ | |
| | | 128. | $81x^2+288x+256=0; $ | $-\dfrac{16}{9}$ | |
| | | 129. | $-49x^2+84x-36=0; $ | $\dfrac{6}{7}$ | |
| | | 130. | $121x^2+154x+49=0; $ | $-\dfrac{7}{11}$ | |
| | | 131. | $16x^2+104x+169=0; $ | $-\dfrac{13}{4}$ | |
| | | 132. | $64x^2+208x+169=0; $ | $-\dfrac{13}{8}$ | |
| | | 133. | $36x^2+204x+289=0; $ | $-\dfrac{17}{6}$ | |
| | | 134. | $49x^2+168x+144=0; $ | $-\dfrac{12}{7}$ | |
| | | 135. | $25x^2+70x+49=0; $ | $-\dfrac{7}{5}$ | |
| | | 136. | $-169x^2+78x-9=0; $ | $\dfrac{3}{13}$ | |
| | | 137. | $324x^2+36x+1=0; $ | $-\dfrac{1}{18}$ | |
| | | 138. | $400x^2+360x+81=0; $ | $-\dfrac{9}{20}$ | |
| | | 139. | $-121x^2+22x-1=0; $ | $\dfrac{1}{11}$ | |
| | | 140. | $-225x^2+330x-121=0; $ | $\dfrac{11}{15}$ | |
| | | 141. | $-4x^2+52x-169=0; $ | $\dfrac{13}{2}$ | |
| | | 142. | $225x^2+210x+49=0; $ | $-\dfrac{7}{15}$ | |
| | | 143. | $256x^2+32x+1=0; $ | $-\dfrac{1}{16}$ | |
| | | 144. | $4x^2+64x+256=0; $ | $-8$ | |
| | | 145. | $25x^2+10x+1=0; $ | $-\dfrac{1}{5}$ | |
| | | 146. | $81x^2+252x+196=0; $ | $-\dfrac{14}{9}$ | |
| | | 147. | $324x^2+720x+400=0; $ | $-\dfrac{10}{9}$ | |
| | | 148. | $324x^2+72x+4=0; $ | $-\dfrac{1}{9}$ | |
| | | 149. | $289x^2+102x+9=0; $ | $-\dfrac{3}{17}$ | |
| | | 150. | $-361x^2+760x-400=0; $ | $\dfrac{20}{19}$ | |
| | | 151. | $-400x^2+200x-25=0; $ | $\dfrac{1}{4}$ | |
| | | 152. | $121x^2+308x+196=0; $ | $-\dfrac{14}{11}$ | |
| | | 153. | $16x^2+80x+100=0; $ | $-\dfrac{5}{2}$ | |
| | | 154. | $361x^2+608x+256=0; $ | $-\dfrac{16}{19}$ | |
| | | 155. | $-361x^2+342x-81=0; $ | $\dfrac{9}{19}$ | |
| | | 156. | $-196x^2+280x-100=0; $ | $\dfrac{5}{7}$ | |
| | | 157. | $-400x^2+320x-64=0; $ | $\dfrac{2}{5}$ | |
| | | 158. | $361x^2+684x+324=0; $ | $-\dfrac{18}{19}$ | |
| | | 159. | $4x^2+68x+289=0; $ | $-\dfrac{17}{2}$ | |
| | | 160. | $121x^2+66x+9=0; $ | $-\dfrac{3}{11}$ | |
| | | 161. | $-81x^2+270x-225=0; $ | $\dfrac{5}{3}$ | |
| | | 162. | $4x^2+32x+64=0; $ | $-4$ | |
| | | 163. | $-169x^2+494x-361=0; $ | $\dfrac{19}{13}$ | |
| | | 164. | $-256x^2+544x-289=0; $ | $\dfrac{17}{16}$ | |
| | | 165. | $169x^2+208x+64=0; $ | $-\dfrac{8}{13}$ | |
| | | 166. | $36x^2+192x+256=0; $ | $-\dfrac{8}{3}$ | |
| | | 167. | $-256x^2+352x-121=0; $ | $\dfrac{11}{16}$ | |
| | | 168. | $256x^2+640x+400=0; $ | $-\dfrac{5}{4}$ | |
| | | 169. | $x^2+32x+256=0; $ | $-16$ | |
| | | 170. | $400x^2+680x+289=0; $ | $-\dfrac{17}{20}$ | |
| | | 171. | $-81x^2+288x-256=0; $ | $\dfrac{16}{9}$ | |
| | | 172. | $49x^2+280x+400=0; $ | $-\dfrac{20}{7}$ | |
| | | 173. | $-400x^2+40x-1=0; $ | $\dfrac{1}{20}$ | |
| | | 174. | $-9x^2+102x-289=0; $ | $\dfrac{17}{3}$ | |
| | | 175. | $16x^2+88x+121=0; $ | $-\dfrac{11}{4}$ | |
| | | 176. | $-289x^2+442x-169=0; $ | $\dfrac{13}{17}$ | |
| | | 177. | $100x^2+240x+144=0; $ | $-\dfrac{6}{5}$ | |
| | | 178. | $-64x^2+304x-361=0; $ | $\dfrac{19}{8}$ | |
| | | 179. | $-361x^2+76x-4=0; $ | $\dfrac{2}{19}$ | |
| | | 180. | $36x^2+36x+9=0; $ | $-\dfrac{1}{2}$ | |
| | | 181. | $361x^2+38x+1=0; $ | $-\dfrac{1}{19}$ | |
| | | 182. | $289x^2+34x+1=0; $ | $-\dfrac{1}{17}$ | |
| | | 183. | $400x^2+720x+324=0; $ | $-\dfrac{9}{10}$ | |
| | | 184. | $-4x^2+76x-361=0; $ | $\dfrac{19}{2}$ | |
| | | 185. | $196x^2+84x+9=0; $ | $-\dfrac{3}{14}$ | |
| | | 186. | $225x^2+420x+196=0; $ | $-\dfrac{14}{15}$ | |
| | | 187. | $121x^2+418x+361=0; $ | $-\dfrac{19}{11}$ | |
| | | 188. | $-81x^2+198x-121=0; $ | $\dfrac{11}{9}$ | |
| | | 189. | $-100x^2+380x-361=0; $ | $\dfrac{19}{10}$ | |
| | | 190. | $-49x^2+168x-144=0; $ | $\dfrac{12}{7}$ | |
| | | 191. | $400x^2+280x+49=0; $ | $-\dfrac{7}{20}$ | |
| | | 192. | $-36x^2+132x-121=0; $ | $\dfrac{11}{6}$ | |
| | | 193. | $289x^2+238x+49=0; $ | $-\dfrac{7}{17}$ | |
| | | 194. | $-324x^2+540x-225=0; $ | $\dfrac{5}{6}$ | |
| | | 195. | $-169x^2+286x-121=0; $ | $\dfrac{11}{13}$ | |
| | | 196. | $16x^2+136x+289=0; $ | $-\dfrac{17}{4}$ | |
| | | 197. | $169x^2+520x+400=0; $ | $-\dfrac{20}{13}$ | |
| | | 198. | $-4x^2+60x-225=0; $ | $\dfrac{15}{2}$ | |
| | | 199. | $-64x^2+272x-289=0; $ | $\dfrac{17}{8}$ | |
| | | 200. | $361x^2+760x+400=0; $ | $-\dfrac{20}{19}$ | |
| | | 201. | $-169x^2+104x-16=0; $ | $\dfrac{4}{13}$ | |
| | | 202. | $64x^2+304x+361=0; $ | $-\dfrac{19}{8}$ | |
| | | 203. | $121x^2+44x+4=0; $ | $-\dfrac{2}{11}$ | |
| | | 204. | $4x^2+44x+121=0; $ | $-\dfrac{11}{2}$ | |
| | | 205. | $289x^2+510x+225=0; $ | $-\dfrac{15}{17}$ | |
| | | 206. | $225x^2+60x+4=0; $ | $-\dfrac{2}{15}$ | |
| | | 207. | $36x^2+132x+121=0; $ | $-\dfrac{11}{6}$ | |
| | | 208. | $-25x^2+110x-121=0; $ | $\dfrac{11}{5}$ | |
| | | 209. | $225x^2+480x+256=0; $ | $-\dfrac{16}{15}$ | |
| | | 210. | $49x^2+238x+289=0; $ | $-\dfrac{17}{7}$ | |
| | | 211. | $-144x^2+336x-196=0; $ | $\dfrac{7}{6}$ | |
| | | 212. | $-121x^2+132x-36=0; $ | $\dfrac{6}{11}$ | |
| | | 213. | $-81x^2+234x-169=0; $ | $\dfrac{13}{9}$ | |
| | | 214. | $361x^2+76x+4=0; $ | $-\dfrac{2}{19}$ | |
| | | 215. | $-256x^2+608x-361=0; $ | $\dfrac{19}{16}$ | |
| | | 216. | $-16x^2+152x-361=0; $ | $\dfrac{19}{4}$ | |
| | | 217. | $361x^2+304x+64=0; $ | $-\dfrac{8}{19}$ | |
| | | 218. | $121x^2+132x+36=0; $ | $-\dfrac{6}{11}$ | |
| | | 219. | $100x^2+340x+289=0; $ | $-\dfrac{17}{10}$ | |
| | | 220. | $-169x^2+442x-289=0; $ | $\dfrac{17}{13}$ | |
| | | 221. | $144x^2+192x+64=0; $ | $-\dfrac{2}{3}$ | |
| | | 222. | $169x^2+104x+16=0; $ | $-\dfrac{4}{13}$ | |
| | | 223. | $169x^2+390x+225=0; $ | $-\dfrac{15}{13}$ | |
| | | 224. | $-289x^2+612x-324=0; $ | $\dfrac{18}{17}$ | |
| | | 225. | $289x^2+374x+121=0; $ | $-\dfrac{11}{17}$ | |
| | | 226. | $-100x^2+340x-289=0; $ | $\dfrac{17}{10}$ | |
| | | 227. | $49x^2+266x+361=0; $ | $-\dfrac{19}{7}$ | |
| | | 228. | $144x^2+312x+169=0; $ | $-\dfrac{13}{12}$ | |
| | | 229. | $-64x^2+48x-9=0; $ | $\dfrac{3}{8}$ | |
| | | 230. | $100x^2+20x+1=0; $ | $-\dfrac{1}{10}$ | |
| | | 231. | $-361x^2+608x-256=0; $ | $\dfrac{16}{19}$ | |
| | | 232. | $361x^2+190x+25=0; $ | $-\dfrac{5}{19}$ | |
| | | 233. | $196x^2+476x+289=0; $ | $-\dfrac{17}{14}$ | |
| | | 234. | $25x^2+190x+361=0; $ | $-\dfrac{19}{5}$ | |
| | | 235. | $-225x^2+30x-1=0; $ | $\dfrac{1}{15}$ | |
| | | 236. | $64x^2+176x+121=0; $ | $-\dfrac{11}{8}$ | |
| | | 237. | $-144x^2+456x-361=0; $ | $\dfrac{19}{12}$ | |
| | | 238. | $-400x^2+440x-121=0; $ | $\dfrac{11}{20}$ | |
| | | 239. | $100x^2+260x+169=0; $ | $-\dfrac{13}{10}$ | |
| | | 240. | $-9x^2+48x-64=0; $ | $\dfrac{8}{3}$ | |
| | | 241. | $-25x^2+170x-289=0; $ | $\dfrac{17}{5}$ | |
| | | 242. | $361x^2+228x+36=0; $ | $-\dfrac{6}{19}$ | |
| | | 243. | $400x^2+40x+1=0; $ | $-\dfrac{1}{20}$ | |
| | | 244. | $-361x^2+456x-144=0; $ | $\dfrac{12}{19}$ | |
| | | 245. | $400x^2+760x+361=0; $ | $-\dfrac{19}{20}$ | |
| | | 246. | $-x^2+30x-225=0; $ | $15$ | |
| | | 247. | $-144x^2+408x-289=0; $ | $\dfrac{17}{12}$ | |
| | | 248. | $289x^2+442x+169=0; $ | $-\dfrac{13}{17}$ | |
| | | 249. | $9x^2+60x+100=0; $ | $-\dfrac{10}{3}$ | |
| | | 250. | $4x^2+40x+100=0; $ | $-5$ | |
| | | 251. | $-324x^2+396x-121=0; $ | $\dfrac{11}{18}$ | |
| | | 252. | $-64x^2+208x-169=0; $ | $\dfrac{13}{8}$ | |
| | | 253. | $-81x^2+342x-361=0; $ | $\dfrac{19}{9}$ | |
| | | 254. | $324x^2+612x+289=0; $ | $-\dfrac{17}{18}$ | |
| | | 255. | $-x^2+34x-289=0; $ | $17$ | |
| | | 256. | $-36x^2+228x-361=0; $ | $\dfrac{19}{6}$ | |
| | | 257. | $-121x^2+66x-9=0; $ | $\dfrac{3}{11}$ | |
| | | 258. | $-36x^2+204x-289=0; $ | $\dfrac{17}{6}$ | |
| | | 259. | $25x^2+90x+81=0; $ | $-\dfrac{9}{5}$ | |
| | | 260. | $-196x^2+168x-36=0; $ | $\dfrac{3}{7}$ | |
| | | 261. | $-4x^2+44x-121=0; $ | $\dfrac{11}{2}$ | |
| | | 262. | $-9x^2+84x-196=0; $ | $\dfrac{14}{3}$ | |
| | | 263. | $289x^2+680x+400=0; $ | $-\dfrac{20}{17}$ | |
| | | 264. | $-256x^2+416x-169=0; $ | $\dfrac{13}{16}$ | |
| | | 265. | $-121x^2+396x-324=0; $ | $\dfrac{18}{11}$ | |
| | | 266. | $4x^2+36x+81=0; $ | $-\dfrac{9}{2}$ | |
| | | 267. | $400x^2+440x+121=0; $ | $-\dfrac{11}{20}$ | |
| | | 268. | $-25x^2+160x-256=0; $ | $\dfrac{16}{5}$ | |
| | | 269. | $-64x^2+176x-121=0; $ | $\dfrac{11}{8}$ | |
| | | 270. | $-4x^2+72x-324=0; $ | $9$ | |
| | | 271. | $-169x^2+182x-49=0; $ | $\dfrac{7}{13}$ | |
| | | 272. | $-361x^2+418x-121=0; $ | $\dfrac{11}{19}$ | |
| | | 273. | $81x^2+90x+25=0; $ | $-\dfrac{5}{9}$ | |
| | | 274. | $121x^2+352x+256=0; $ | $-\dfrac{16}{11}$ | |
| | | 275. | $-256x^2+96x-9=0; $ | $\dfrac{3}{16}$ | |
| | | 276. | $9x^2+78x+169=0; $ | $-\dfrac{13}{3}$ | |
| | | 277. | $-x^2+32x-256=0; $ | $16$ | |
| | | 278. | $9x^2+24x+16=0; $ | $-\dfrac{4}{3}$ | |
| | | 279. | $-144x^2+120x-25=0; $ | $\dfrac{5}{12}$ | |
| | | 280. | $-16x^2+112x-196=0; $ | $\dfrac{7}{2}$ | |
| | | 281. | $-289x^2+476x-196=0; $ | $\dfrac{14}{17}$ | |
| | | 282. | $-361x^2+646x-289=0; $ | $\dfrac{17}{19}$ | |
| | | 283. | $196x^2+420x+225=0; $ | $-\dfrac{15}{14}$ | |
| | | 284. | $289x^2+204x+36=0; $ | $-\dfrac{6}{17}$ | |
| | | 285. | $-121x^2+418x-361=0; $ | $\dfrac{19}{11}$ | |
| | | 286. | $289x^2+408x+144=0; $ | $-\dfrac{12}{17}$ | |
| | | 287. | $-289x^2+68x-4=0; $ | $\dfrac{2}{17}$ | |
| | | 288. | $-121x^2+154x-49=0; $ | $\dfrac{7}{11}$ | |
| | | 289. | $144x^2+24x+1=0; $ | $-\dfrac{1}{12}$ | |
| | | 290. | $-16x^2+56x-49=0; $ | $\dfrac{7}{4}$ | |
| | | 291. | $25x^2+120x+144=0; $ | $-\dfrac{12}{5}$ | |
| | | 292. | $361x^2+266x+49=0; $ | $-\dfrac{7}{19}$ | |
| | | 293. | $-100x^2+260x-169=0; $ | $\dfrac{13}{10}$ | |
| | | 294. | $64x^2+224x+196=0; $ | $-\dfrac{7}{4}$ | |
| | | 295. | $49x^2+70x+25=0; $ | $-\dfrac{5}{7}$ | |
| | | 296. | $-64x^2+112x-49=0; $ | $\dfrac{7}{8}$ | |
| | | 297. | $64x^2+240x+225=0; $ | $-\dfrac{15}{8}$ | |
| | | 298. | $-25x^2+140x-196=0; $ | $\dfrac{14}{5}$ | |
| | | 299. | $-9x^2+120x-400=0; $ | $\dfrac{20}{3}$ | |
| | | 300. | $49x^2+84x+36=0; $ | $-\dfrac{6}{7}$ | |
| | | 301. | $361x^2+342x+81=0; $ | $-\dfrac{9}{19}$ | |
| | | 302. | $-289x^2+408x-144=0; $ | $\dfrac{12}{17}$ | |
| | | 303. | $-289x^2+340x-100=0; $ | $\dfrac{10}{17}$ | |
| | | 304. | $49x^2+252x+324=0; $ | $-\dfrac{18}{7}$ | |
| | | 305. | $-361x^2+152x-16=0; $ | $\dfrac{4}{19}$ | |
| | | 306. | $225x^2+30x+1=0; $ | $-\dfrac{1}{15}$ | |
| | | 307. | $-x^2+16x-64=0; $ | $8$ | |
| | | 308. | $-4x^2+80x-400=0; $ | $10$ | |
| | | 309. | $196x^2+252x+81=0; $ | $-\dfrac{9}{14}$ | |
| | | 310. | $-16x^2+104x-169=0; $ | $\dfrac{13}{4}$ | |
| | | 311. | $-196x^2+84x-9=0; $ | $\dfrac{3}{14}$ | |
| | | 312. | $256x^2+576x+324=0; $ | $-\dfrac{9}{8}$ | |
| | | 313. | $16x^2+72x+81=0; $ | $-\dfrac{9}{4}$ | |
| | | 314. | $-121x^2+264x-144=0; $ | $\dfrac{12}{11}$ | |
| | | 315. | $225x^2+390x+169=0; $ | $-\dfrac{13}{15}$ | |
| | | 316. | $-49x^2+182x-169=0; $ | $\dfrac{13}{7}$ | |
| | | 317. | $361x^2+494x+169=0; $ | $-\dfrac{13}{19}$ | |
| | | 318. | $-121x^2+374x-289=0; $ | $\dfrac{17}{11}$ | |
| | | 319. | $-361x^2+38x-1=0; $ | $\dfrac{1}{19}$ | |
| | | 320. | $-289x^2+544x-256=0; $ | $\dfrac{16}{17}$ | |
| | | 321. | $-289x^2+272x-64=0; $ | $\dfrac{8}{17}$ | |
| | | 322. | $121x^2+88x+16=0; $ | $-\dfrac{4}{11}$ | |
| | | 323. | $81x^2+360x+400=0; $ | $-\dfrac{20}{9}$ | |
| | | 324. | $-289x^2+170x-25=0; $ | $\dfrac{5}{17}$ | |
| | | 325. | $169x^2+78x+9=0; $ | $-\dfrac{3}{13}$ | |
| | | 326. | $-324x^2+576x-256=0; $ | $\dfrac{8}{9}$ | |
| | | 327. | $-324x^2+720x-400=0; $ | $\dfrac{10}{9}$ | |
| | | 328. | $-100x^2+280x-196=0; $ | $\dfrac{7}{5}$ | |
| | | 329. | $x^2+14x+49=0; $ | $-7$ | |
| | | 330. | $169x^2+312x+144=0; $ | $-\dfrac{12}{13}$ | |
| | | 331. | $-49x^2+252x-324=0; $ | $\dfrac{18}{7}$ | |
| | | 332. | $256x^2+416x+169=0; $ | $-\dfrac{13}{16}$ | |
| | | 333. | $-144x^2+168x-49=0; $ | $\dfrac{7}{12}$ | |
| | | 334. | $121x^2+110x+25=0; $ | $-\dfrac{5}{11}$ | |
| | | 335. | $9x^2+114x+361=0; $ | $-\dfrac{19}{3}$ | |
| | | 336. | $289x^2+476x+196=0; $ | $-\dfrac{14}{17}$ | |
| | | 337. | $-361x^2+532x-196=0; $ | $\dfrac{14}{19}$ | |
| | | 338. | $x^2+22x+121=0; $ | $-11$ | |
| | | 339. | $-361x^2+494x-169=0; $ | $\dfrac{13}{19}$ | |
| | | 340. | $256x^2+160x+25=0; $ | $-\dfrac{5}{16}$ | |
| | | 341. | $225x^2+330x+121=0; $ | $-\dfrac{11}{15}$ | |
| | | 342. | $121x^2+396x+324=0; $ | $-\dfrac{18}{11}$ | |
| | | 343. | $169x^2+468x+324=0; $ | $-\dfrac{18}{13}$ | |
| | | 344. | $324x^2+684x+361=0; $ | $-\dfrac{19}{18}$ | |
| | | 345. | $-81x^2+360x-400=0; $ | $\dfrac{20}{9}$ | |
| | | 346. | $121x^2+198x+81=0; $ | $-\dfrac{9}{11}$ | |
| | | 347. | $-121x^2+440x-400=0; $ | $\dfrac{20}{11}$ | |
| | | 348. | $-225x^2+360x-144=0; $ | $\dfrac{4}{5}$ | |
| | | 349. | $x^2+30x+225=0; $ | $-15$ | |
| | | 350. | $-324x^2+360x-100=0; $ | $\dfrac{5}{9}$ | |
| | | 351. | $121x^2+330x+225=0; $ | $-\dfrac{15}{11}$ | |
| | | 352. | $-361x^2+190x-25=0; $ | $\dfrac{5}{19}$ | |
| | | 353. | $81x^2+234x+169=0; $ | $-\dfrac{13}{9}$ | |
| | | 354. | $361x^2+456x+144=0; $ | $-\dfrac{12}{19}$ | |
| | | 355. | $-9x^2+96x-256=0; $ | $\dfrac{16}{3}$ | |
| | | 356. | $-x^2+22x-121=0; $ | $11$ | |
| | | 357. | $361x^2+418x+121=0; $ | $-\dfrac{11}{19}$ | |
| | | 358. | $121x^2+440x+400=0; $ | $-\dfrac{20}{11}$ | |
| | | 359. | $-36x^2+240x-400=0; $ | $\dfrac{10}{3}$ | |
| | | 360. | $289x^2+306x+81=0; $ | $-\dfrac{9}{17}$ | |
| | | 361. | $-9x^2+114x-361=0; $ | $\dfrac{19}{3}$ | |
| | | 362. | $-225x^2+420x-196=0; $ | $\dfrac{14}{15}$ | |
| | | 363. | $49x^2+126x+81=0; $ | $-\dfrac{9}{7}$ | |
| | | 364. | $144x^2+264x+121=0; $ | $-\dfrac{11}{12}$ | |
| | | 365. | $225x^2+510x+289=0; $ | $-\dfrac{17}{15}$ | |
| | | 366. | $400x^2+520x+169=0; $ | $-\dfrac{13}{20}$ | |
| | | 367. | $-289x^2+306x-81=0; $ | $\dfrac{9}{17}$ | |
| | | 368. | $9x^2+102x+289=0; $ | $-\dfrac{17}{3}$ | |
| | | 369. | $289x^2+68x+4=0; $ | $-\dfrac{2}{17}$ | |
| | | 370. | $-324x^2+612x-289=0; $ | $\dfrac{17}{18}$ | |
| | | 371. | $-400x^2+280x-49=0; $ | $\dfrac{7}{20}$ | |
| | | 372. | $49x^2+56x+16=0; $ | $-\dfrac{4}{7}$ | |
| | | 373. | $-196x^2+504x-324=0; $ | $\dfrac{9}{7}$ | |
| | | 374. | $36x^2+168x+196=0; $ | $-\dfrac{7}{3}$ | |
| | | 375. | $-81x^2+36x-4=0; $ | $\dfrac{2}{9}$ | |
| | | 376. | $-49x^2+154x-121=0; $ | $\dfrac{11}{7}$ | |
| | | 377. | $-289x^2+102x-9=0; $ | $\dfrac{3}{17}$ | |
| | | 378. | $-x^2+36x-324=0; $ | $18$ | |
| | | 379. | $-64x^2+240x-225=0; $ | $\dfrac{15}{8}$ | |
| | | 380. | $-169x^2+234x-81=0; $ | $\dfrac{9}{13}$ | |
| | | 381. | $64x^2+16x+1=0; $ | $-\dfrac{1}{8}$ | |
| | | 382. | $144x^2+456x+361=0; $ | $-\dfrac{19}{12}$ | |
| | | 383. | $196x^2+308x+121=0; $ | $-\dfrac{11}{14}$ | |
| | | 384. | $-16x^2+88x-121=0; $ | $\dfrac{11}{4}$ | |
| | | 385. | $196x^2+532x+361=0; $ | $-\dfrac{19}{14}$ | |
| | | 386. | $361x^2+114x+9=0; $ | $-\dfrac{3}{19}$ | |
| | | 387. | $-16x^2+120x-225=0; $ | $\dfrac{15}{4}$ | |
| | | 388. | $-196x^2+448x-256=0; $ | $\dfrac{8}{7}$ | |
| | | 389. | $-25x^2+180x-324=0; $ | $\dfrac{18}{5}$ | |
| | | 390. | $x^2+26x+169=0; $ | $-13$ | |
| | | 391. | $9x^2+66x+121=0; $ | $-\dfrac{11}{3}$ | |
| | | 392. | $144x^2+408x+289=0; $ | $-\dfrac{17}{12}$ | |
| | | 393. | $-25x^2+130x-169=0; $ | $\dfrac{13}{5}$ | |
| | | 394. | $196x^2+28x+1=0; $ | $-\dfrac{1}{14}$ | |
| | | 395. | $256x^2+320x+100=0; $ | $-\dfrac{5}{8}$ | |
| | | 396. | $256x^2+224x+49=0; $ | $-\dfrac{7}{16}$ | |
| | | 397. | $-121x^2+220x-100=0; $ | $\dfrac{10}{11}$ | |
| | | 398. | $361x^2+532x+196=0; $ | $-\dfrac{14}{19}$ | |
| | | 399. | $4x^2+60x+225=0; $ | $-\dfrac{15}{2}$ | |
| | | 400. | $-196x^2+140x-25=0; $ | $\dfrac{5}{14}$ | |
