# How do you simplify (3x)^-2 ?

Jun 16, 2016

$\frac{1}{9 {x}^{2}}$

#### Explanation:

To simplify ${\left(3 x\right)}^{-} 2$

Begin by eliminating the negative exponent by moving that term to the denominator.

$\frac{1}{{\left(3 x\right)}^{2}}$

Now distribute the exponent

$\frac{1}{{3}^{2} {x}^{2}}$

Now simplify

$\frac{1}{9 {x}^{2}}$