Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 8 - Radical Functions - 8.5 Complex Numbers - 8.5 Exercises: 43

Answer

$-13+26i$

Work Step by Step

$(2+3i)(4+7i)$ $2(4+7i)+3i(4+7i)$ $8+14i+12i+21i^{2}$ $8+26i+21i^{2}$ $8+26i+21(-1)$ $-13+26i$
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