| x² - 3x - 270 = 0 x1 = -15 , x2 = 18 | x² + x - 240 = 0 x1 = -16 , x2 = 15 |
| x² - 6x - 160 = 0 x1 = -10 , x2 = 16 | x² + 15x = 0 x1 = -15 , x2 = 0 |
| x² + 5x + 6 = 0 x1 = -3 , x2 = -2 | x² - 8x + 15 = 0 x1 = 3 , x2 = 5 |
| x² + 11x - 126 = 0 x1 = -18 , x2 = 7 | x² - 14x + 48 = 0 x1 = 6 , x2 = 8 |
| x² + x - 42 = 0 x1 = -7 , x2 = 6 | x² + 12x = 0 x1 = -12 , x2 = 0 |
| x² - 11x + 28 = 0 x1 = 4 , x2 = 7 | x² - 100 = 0 x1 = -10 , x2 = 10 |
| x² + 16x + 63 = 0 x1 = -9 , x2 = -7 | x² - 7x - 30 = 0 x1 = -3 , x2 = 10 |
| x² + 27x + 176 = 0 x1 = -16 , x2 = -11 | x² - 39x + 380 = 0 x1 = 19 , x2 = 20 |
| x² - 11x - 42 = 0 x1 = -3 , x2 = 14 | x² + 31x + 228 = 0 x1 = -19 , x2 = -12 |
| x² - 17x + 60 = 0 x1 = 5 , x2 = 12 | x² + 13x - 140 = 0 x1 = -20 , x2 = 7 |