Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter R - Elementary Algebra Review - R.4 Polynomials - R.4 Exercise Set: 14

Answer

$a^{2}$

Work Step by Step

Using the laws of exponents, the given expression, $ a^4\cdot a^{-2} ,$ simplifies to \begin{array}{l}\require{cancel} a^{4+(-2)} \\\\= a^{4-2} \\\\= a^{2} .\end{array}
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