| x² + 25x + 136 = 0 x1 = -17 , x2 = -8 | x² + 5x = 0 x1 = -5 , x2 = 0 |
| x² + 13x - 30 = 0 x1 = -15 , x2 = 2 | x² - 8x = 0 x1 = 0 , x2 = 8 |
| x² - 11x + 18 = 0 x1 = 2 , x2 = 9 | x² - 26x + 120 = 0 x1 = 6 , x2 = 20 |
| x² - 6x - 216 = 0 x1 = -12 , x2 = 18 | x² + 21x + 68 = 0 x1 = -17 , x2 = -4 |
| x² + 3x - 70 = 0 x1 = -10 , x2 = 7 | x² - 4x = 0 x1 = 0 , x2 = 4 |
| x² + 26x + 144 = 0 x1 = -18 , x2 = -8 | x² + x - 306 = 0 x1 = -18 , x2 = 17 |
| x² - 6x - 16 = 0 x1 = -2 , x2 = 8 | x² - 25x + 114 = 0 x1 = 6 , x2 = 19 |
| x² - 27x + 140 = 0 x1 = 7 , x2 = 20 | x² + 11x = 0 x1 = -11 , x2 = 0 |
| x² + 9x - 220 = 0 x1 = -20 , x2 = 11 | x² + 26x + 120 = 0 x1 = -20 , x2 = -6 |
| x² - 2x - 360 = 0 x1 = -18 , x2 = 20 | x² + 3x - 108 = 0 x1 = -12 , x2 = 9 |