Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - 5.6 - Integral Exponents and Scientific Notation - Problem Set 5.6 - Page 223: 3

Answer

$\dfrac{1}{64}$

Work Step by Step

Using $a^{-x}=\dfrac{1}{a^x}$ or $\dfrac{1}{a^{-x}}=a^x$ and the laws of exponents, the given expression, $ 4^{-3} ,$ is equivalent to \begin{array}{l}\require{cancel} \dfrac{1}{4^3} \\\\= \dfrac{1}{64} .\end{array}
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