| x² + 25x + 136 = 0 x1 = -17 , x2 = -8 | x² = 0 x1 = 0 , x2 = 0 |
| x² - 22x + 120 = 0 x1 = 10 , x2 = 12 | x² + 20x + 84 = 0 x1 = -14 , x2 = -6 |
| x² + 32x + 247 = 0 x1 = -19 , x2 = -13 | x² + 6x - 72 = 0 x1 = -12 , x2 = 6 |
| x² + 5x - 6 = 0 x1 = -6 , x2 = 1 | x² - 6x - 72 = 0 x1 = -6 , x2 = 12 |
| x² + 10x - 200 = 0 x1 = -20 , x2 = 10 | x² - 9x = 0 x1 = 0 , x2 = 9 |
| x² + 9x - 190 = 0 x1 = -19 , x2 = 10 | x² - 3x - 238 = 0 x1 = -14 , x2 = 17 |
| x² + 10x - 144 = 0 x1 = -18 , x2 = 8 | x² - 33x + 270 = 0 x1 = 15 , x2 = 18 |
| x² + 8x - 180 = 0 x1 = -18 , x2 = 10 | x² + 17x + 60 = 0 x1 = -12 , x2 = -5 |
| x² + 9x - 220 = 0 x1 = -20 , x2 = 11 | x² + 35x + 304 = 0 x1 = -19 , x2 = -16 |
| x² - 6x - 280 = 0 x1 = -14 , x2 = 20 | x² + 13x = 0 x1 = -13 , x2 = 0 |