| x² + 28x + 180 = 0 x1 = -18 , x2 = -10 | x² + 8x - 84 = 0 x1 = -14 , x2 = 6 |
| x² - 21x + 38 = 0 x1 = 2 , x2 = 19 | x² + 2x - 224 = 0 x1 = -16 , x2 = 14 |
| x² - 12x = 0 x1 = 0 , x2 = 12 | x² - 11x - 12 = 0 x1 = -1 , x2 = 12 |
| x² - 5x + 6 = 0 x1 = 2 , x2 = 3 | x² + 25x + 144 = 0 x1 = -16 , x2 = -9 |
| x² - 23x + 102 = 0 x1 = 6 , x2 = 17 | x² - 22x + 72 = 0 x1 = 4 , x2 = 18 |
| x² - 9x = 0 x1 = 0 , x2 = 9 | x² + 30x + 216 = 0 x1 = -18 , x2 = -12 |
| x² - 4x - 60 = 0 x1 = -6 , x2 = 10 | x² - 23x + 120 = 0 x1 = 8 , x2 = 15 |
| x² - 9x - 190 = 0 x1 = -10 , x2 = 19 | x² + 8x - 65 = 0 x1 = -13 , x2 = 5 |
| x² + 19x - 20 = 0 x1 = -20 , x2 = 1 | x² - 5x - 126 = 0 x1 = -9 , x2 = 14 |
| x² + 18x + 72 = 0 x1 = -12 , x2 = -6 | x² + 8x - 209 = 0 x1 = -19 , x2 = 11 |