Answer
$=3^{3}$
Work Step by Step
We are given: $3^{7}.3^{-4}$
$=3^{7+(-4)}$
$=3^{3}$
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 10 - Radical Expressions and Equations - 10-3 Operations With Radical Expressions - Practice and Problem-Solving Exercises - Page 631: 75
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