Elementary Algebra

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: 26

Answer

8

Work Step by Step

We combine like terms to obtain: $(4-i)+(4+i)$ =$4-i+4+i$ =$4+4-i+i$ =$8+0i$ =$8$
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