Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - Chapter 11 Review Problem Set: 45

Answer

$3-4i$

Work Step by Step

(Recall, we must distribute the negative to everything in the second set of parenthesis.) Adding the real terms together and the imaginary terms together, we obtain: $(-5+3i)-(-8+7i)$ =$-5+3i+8-7i$ =$(-5+8)+(3i-7i)$ =$3-4i$
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