Answer
$...=a^{4+4}=a^{4\cdot 2}=a^{8}$
Work Step by Step
$(a^{4})^{2}=a^{4}\cdot a^{4}=a^{4+4}=a^{4\cdot 2}=a^{8}$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 7 - Exponents and Exponential Functions - Concept Byte - Page 432: 6
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