Answer
$53.04+34.8i$
Work Step by Step
$(2+7.6i)(6-5.4i)$
=$2(6-5.4i)+7.6i(6-5.4i)$
=$12-2(5.4i)+7.6i(6)-(7.6i)(5.4i)$
=$12-10.8i+45.6i-41.04i^{2}$
=$12-10.8i+45.6i-41.04(-1)$
=$12+41.04-10.8i+45.6i$
=$53.04+34.8i$
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: 48
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