# How do you simplify 5k^-2 and write it using only positive exponents?

Use this rule for exponents: ${x}^{\textcolor{red}{a}} = \frac{1}{x} ^ \textcolor{red}{- a}$
$5 {k}^{\textcolor{red}{- 2}} = \frac{5}{k} ^ \textcolor{red}{- - 2} = \frac{5}{k} ^ \textcolor{red}{2}$