Algebra and Trigonometry 10th Edition

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

Chapter 1 - 1.5 - Complex Numbers - 1.5 Exercises - Page 120: 95

Answer

See below.

Work Step by Step

The square roots must be written in complex form before combining the values under the square roots. Also $\sqrt a\sqrt b=\sqrt {ab}$ is not valid for negative numbers.
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