# How do you solve 100=25x^2?

$x = 2 \mathmr{and} x = - 2$
So first we need to isolate the square (divide 25 on both sides of the equation) which give us ${x}^{2} = 4$
Now take the $\pm$ square root on both sides of the equation in order to get rid of the square because square root is the opposite of the square so they cancel each other.
$x = \pm 2$