Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 8 - Complex Numbers, Polar Equations, and Parametric Equations - Section 8.1 Complex Numbers - 8.1 Exercises - Page 358: 63

Answer

$8-i$

Work Step by Step

$(2+i)(3-2i)=(2)(3)+(2)(-2i)+(i)(3)+(i)(-2i)=6-4i+3i-2i^{2}=6-4i+3i-2(-1)=6-4i+3i+2=6+2+(-4+3)i=8+(-1)i)=8-i$
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