| -6.5x² - 45.5x - 78 = 0 x1 = -4 , x2 = -3 | -8.5x² - 68x - 127.5 = 0 x1 = -5 , x2 = -3 |
| -6x² + 6 = 0 x1 = -1 , x2 = 1 | 9.5x² - 38x - 199.5 = 0 x1 = -3 , x2 = 7 |
| -4.5x² - 13.5x + 180 = 0 x1 = -8 , x2 = 5 | -5x² - 5x + 450 = 0 x1 = -10 , x2 = 9 |
| 3.5x² - 59.5x + 245 = 0 x1 = 7 , x2 = 10 | 5x² + 60x + 100 = 0 x1 = -10 , x2 = -2 |
| 8.5x² - 144.5x + 612 = 0 x1 = 8 , x2 = 9 | 7.5x² - 75x + 180 = 0 x1 = 4 , x2 = 6 |
| 8.5x² + 76.5x = 0 x1 = -9 , x2 = 0 | 1.5x² + 10.5x = 0 x1 = -7 , x2 = 0 |
| -3.5x² + 10.5x = 0 x1 = 0 , x2 = 3 | x² + 9x = 0 x1 = -9 , x2 = 0 |
| 3.5x² - 42x + 112 = 0 x1 = 4 , x2 = 8 | 7x² = 0 x1 = 0 , x2 = 0 |
| -3.5x² - 45.5x - 147 = 0 x1 = -7 , x2 = -6 | -4.5x² - 22.5x + 27 = 0 x1 = -6 , x2 = 1 |
| -4.5x² + 27x = 0 x1 = 0 , x2 = 6 | -8.5x² - 51x + 229.5 = 0 x1 = -9 , x2 = 3 |