Answer
$(-2-4i\sqrt6)$
Work Step by Step
$(2-i\sqrt6)^2=4-4i\sqrt6-6=$$-2-4i\sqrt6$
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: 66
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