Answer
$8 - 2i$
Work Step by Step
$7 + 2i + 1-4i$
$ = 7 + 1 + 2i - 4i$
$ = 8 - 2i$
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: 1
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