Thinking Mathematically (6th Edition)

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: 4

Answer

$5 \cdot 5^2 = 5^3$ $5^3=5(5)(5)=125$

Work Step by Step

$a^m \cdot a^n = a^{m+n}$ Thus, $5 \cdot 5^2 \\= 5^{1+2} \\=5^3 \\=125$
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