Answer
8
Work Step by Step
We combine like terms to obtain:
$(4-i)+(4+i)$
=$4-i+4+i$
=$4+4-i+i$
=$8+0i$
=$8$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 11 - Additional Topics - 11.4 - Complex Numbers - Problem Set 11.4 - Page 493: 26
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