| x² + 26x + 120 = 0 x1 = -20 , x2 = -6 | x² - 16x = 0 x1 = 0 , x2 = 16 |
| x² + 30x + 224 = 0 x1 = -16 , x2 = -14 | x² - 14x + 45 = 0 x1 = 5 , x2 = 9 |
| x² + 5x - 300 = 0 x1 = -20 , x2 = 15 | x² + 9x + 18 = 0 x1 = -6 , x2 = -3 |
| x² - 30x + 209 = 0 x1 = 11 , x2 = 19 | x² - 17x = 0 x1 = 0 , x2 = 17 |
| x² - 2x - 80 = 0 x1 = -8 , x2 = 10 | x² - 25x + 156 = 0 x1 = 12 , x2 = 13 |
| x² - 14x + 40 = 0 x1 = 4 , x2 = 10 | x² - 25x + 154 = 0 x1 = 11 , x2 = 14 |
| x² - 19x + 70 = 0 x1 = 5 , x2 = 14 | x² + 11x - 80 = 0 x1 = -16 , x2 = 5 |
| x² + 23x + 102 = 0 x1 = -17 , x2 = -6 | x² - 22x + 40 = 0 x1 = 2 , x2 = 20 |
| x² - 21x + 80 = 0 x1 = 5 , x2 = 16 | x² - 6x - 55 = 0 x1 = -5 , x2 = 11 |
| x² - 4x = 0 x1 = 0 , x2 = 4 | x² - 12x - 133 = 0 x1 = -7 , x2 = 19 |