| 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. | $7x^2-4x-3=0$ | $1; -\dfrac{3}{7}$ |