Answer
$-13+26i$
Work Step by Step
$(2+3i)(4+7i)$
$2(4+7i)+3i(4+7i)$
$8+14i+12i+21i^{2}$
$8+26i+21i^{2}$
$8+26i+21(-1)$
$-13+26i$
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 - 8.5 Complex Numbers - 8.5 Exercises - Page 663: 43
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