Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.7 - Complex Numbers - Exercise Set: 42

Answer

$2 + 14i$

Work Step by Step

$(3 + i)(2 + 4i) = 6 + 12i + 2i + 4i^2 = 6 + 14i + 4(-1) = 2 + 14i$
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