## Elementary Algebra

Published by Cengage Learning

# Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set - Page 231: 51

#### Answer

$\dfrac{1}{16}$

#### Work Step by Step

Using $a^{-x}=\dfrac{1}{a^x}$, the given expression, $2^{-4} ,$ simplifies to \begin{array}{l}\require{cancel} \dfrac{1}{2^4} \\\\= \dfrac{1}{16} .\end{array}

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