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 119: 28



Work Step by Step

$(8+\sqrt {-18})-(4+3\sqrt {2}i)=(8+3\sqrt {2}i)-(4+3\sqrt {2}i)$ where i = $\sqrt {-1}$ $(8-4) + (3\sqrt {2}i-3\sqrt {2}i)=4+0i=4$
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