Fórmula Cuadrática
Ejercicio 1
\[-5x^2 - 4x + 9=0\]
\[x = \boxed{\phantom{\rule{2em}{1.2em}}}\]
\[x = \boxed{\phantom{\rule{2em}{1.2em}}}\]
Ejercicio 2
\[4x^2 + 4x - 48=0\]
\[x = \boxed{\phantom{\rule{2em}{1.2em}}}\]
\[x = \boxed{\phantom{\rule{2em}{1.2em}}}\]
Ejercicio 3
\[-3x^2 + 4x + 95=0\]
\[x = \boxed{\phantom{\rule{2em}{1.2em}}}\]
\[x = \boxed{\phantom{\rule{2em}{1.2em}}}\]