Answer
$\frac{1}{x^{3}}$
Work Step by Step
We know that $a^{−n}=\frac{1}{a^{n}}$ and $\frac{1}{a^{-n}}=a^{n}$ (as long as a is a nonzero real number and n is an integer).
Therefore, $\frac{x^{-2}}{x}=\frac{1}{x^{2}}\times \frac{1}{x}=\frac{1}{x^{2+1}}=\frac{1}{x^{3}}$.