Answer
$4\cdot4^2= 4^3$
$4^3=4(4)(4)=64$
Work Step by Step
$a^m \cdot a^n = a^{m+n}$
Thus,
$4 \cdot 4^2
\\= 4^{1+2}
\\=4^3
\\=64$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - 5.6 Exponents and Scientific Notation - Exercise Set 5.6 - Page 319: 3
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