Question

Solve please. 4x^2-25

Answer 1

$\begin{gathered} 4x^2-25=0 \\ 4x^2=25 \\ x^2=\frac{25}{4} \\ x=\sqrt[]{\frac{25}{4}} \\ x=\frac{\sqrt[]{25}}{\sqrt[]{4}} \\ x=\frac{5}{2} \\ or\text{ x=2.5} \end{gathered}$