Fórmula Cuadrática - Soluciones
Solución 1
\[-4x^2 - 4x + 80=0\]
\[x = \boxed{(-5, 4)}\]
\[x = \boxed{(-5, 4)}\]
Solución 2
\[-4x^2 + 5x + 51=0\]
\[x = \boxed{(-3, \frac{17}{4})}\]
\[x = \boxed{(-3, \frac{17}{4})}\]
Solución 3
\[-4x^2 + 4x=0\]
\[x = \boxed{(0, 1)}\]
\[x = \boxed{(0, 1)}\]