Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - Review Exercises - Page 153: 61



Work Step by Step

Use: $\sqrt {-1}=i$ $4+\sqrt {-9}=4+\sqrt {9(-1)}=4+\sqrt 9\sqrt {-1}=4+3i$
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