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 - Page 493: 22



Work Step by Step

We first use the distributive property to simplify. Then, we combine like terms to obtain: $(-7-3i)-(8-9i)$ =$-7-3i-8+9i$ =$-7-8-3i+9i$ =$-15+6i$
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