Question

x to the second power equals 0.25...what is x

Answer 1

The given equation is :

$x^{2} =0.25$

To solve this equation for x we need to isolate x.

Hence, we need to remove square from x. We will always use the opposite operation of a number/ variable to get rid of that number/ variable.

Opposite operation of square is square root.

Hence, first step is to take square root on each sides of the equation. Therefore,

$\sqrt{x^2} =\pm\sqrt{0.25}$

$x=\pm0.5$

Therefore, x = -0.5 and 0.5.