Respuesta :

[tex]x\text{ = 16}[/tex]

Here, we want to get the value of x

The first thing we have to do here is to isolate the root

We have this as;

[tex]\begin{gathered} \sqrt[]{x}\text{ = 12-8} \\ \sqrt[]{x}\text{ = 4} \\ (\sqrt[]{x})^2=4^2 \\ x\text{ = 16} \end{gathered}[/tex]