| a | b | c | ax2+bx+c=0 | |
| 2 | 4 | -6 | 2x^2+4x-6=0 | 2 |
| 5 | -10 | -15 | 5x^2-10x-15=0 | 0 |
| 2 | 2 | -4 | 2x^2+2x-4=0 | 2 |
| 1 | -2 | 1 | x^2-2x-1=0 | 0 |
| 1 | -3 | -10 | x^2-3x-10=0 | -12 |
Ejercicios resueltos
| a | b | c | ax2+bx+c=0 | |
| 2 | 4 | -6 | 2x^2+4x-6=0 | 2 |
| 5 | -10 | -15 | 5x^2-10x-15=0 | 0 |
| 2 | 2 | -4 | 2x^2+2x-4=0 | 2 |
| 1 | -2 | 1 | x^2-2x-1=0 | 0 |
| 1 | -3 | -10 | x^2-3x-10=0 | -12 |
Ecuaciones de segundo grado 