How do you solve sqrtx = 12?

Sep 9, 2016

$x = 144$

Explanation:

If we consider that in order to isolate and solve for an unknown value, whatever we do to one side we must do to the other:

Therefore, if we consider the equation;
$\sqrt{x} = 12$
In order to eliminate the square root of $x$ and simply express the equation in terms of $x$, we must square both sides - remembering that whatever we do to onside of the equation we must do to the other to maintain the equality of the equation.

$\to {\sqrt{x}}^{2} = {12}^{2}$
$x = 144$