# How do you simplify (m)^-4?

$\frac{1}{m} ^ 4$.
It is known that ${k}^{-} 1$ = $\frac{1}{k}$ and ${k}^{-} n$ = $\frac{1}{k} ^ n$. Thus ${m}^{-} 4 = \frac{1}{m} ^ 4$.