# Chapter R - Elementary Algebra Review - R.4 Polynomials - R.4 Exercise Set: 7

$\dfrac{10}{x^{5}}$

#### Work Step by Step

Using $a^{-n}=\dfrac{1}{a^n}$, the given expression, $10x^{-5}$, simplifies to \begin{array}{l}\require{cancel} \dfrac{10}{x^{5}} \end{array}

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