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