Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - 1.3 Complex Numbers - 1.3 Exercises - Page 112: 48

Answer

$12+4i$

Work Step by Step

Combine like terms to obtain: $=(4+8)+(-i+5i) \\=12+4i$
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