# How do you simplify -3^-4?

May 16, 2015

${a}^{-} x$ is the same as $\frac{1}{{a}^{x}}$.

Therefore, $- {3}^{-} 4 = - \frac{1}{3} ^ 4 = - \frac{1}{81} = - \frac{1}{9} ^ 2$.