Answer
$ 16 + 56i$
Work Step by Step
$-8i \times 2i - 8i \times (-7)$
$=-16 i^2 + 56i$
$=-16 \times (-1) +56i$
$= 16 + 56i$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 2 - Section 2.1 - Complex Numbers - Exercise Set - Page 314: 10
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