Answer
$\frac{5}{x^{2}}$
Work Step by Step
We know that $a^{−n}=\frac{1}{a^{n}}$ (as long as a is a nonzero real number and n is an integer).
Therefore, $5x^{-2}=5\times\frac{1}{x^{2}}=\frac{5}{x^{2}}$.
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