# How do you solve  sqrtx=9?

Jan 26, 2016

$x = 81$

#### Explanation:

Remember that when the radical sign is transposed to the other side of the equation,It becomes the opposite of it which is the exponent

$\sqrt{x} = 9$

$\rightarrow x = {9}^{2}$

${9}^{2} = 9 \cdot 9 = 81$

$x = 81$