Answer
$(\sqrt 2+3i)(\sqrt 2-3i)=11$
Work Step by Step
$(\sqrt 2+3i)(\sqrt 2-3i)=(\sqrt 2)^2-(3i)^2=2-3^2i^2=2-9(-1)=2+9=11$
Algebra and Trigonometry 10th Edition
by Larson, Ron
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: 35
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