Answer
$3^5 \cdot 3^{-2} = 3^3 = 27$
Work Step by Step
RECALL:
For any non-zero real number $a$,
$a^m \cdot a^n = a^{m+n}$
Use the rule above to find:
$=3^{5+(-2)}
\\=3^3
\\=27$
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 - Chapter Summary, Review, and Test - Review Exercises - Page 336: 104
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