Answer
$4+3i$
Work Step by Step
$\frac{12+9i}{3}=\frac{3(4+3i)}{3}=4+3i$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 8 - Radical Functions - Chapter Review Exercises - Page 671: 88
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