Fórmula Cuadrática
Ejercicio 1
\[-3x^2 - 3x + 60=0\]
\[x = \mathbf{?}\]
\[x = \mathbf{?}\]
Ejercicio 2
\[x^2 + x - 2=0\]
\[x = \mathbf{?}\]
\[x = \mathbf{?}\]
Ejercicio 3
\[x^2 - 4x - 5=0\]
\[x = \mathbf{?}\]
\[x = \mathbf{?}\]
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