Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 12 - Sequences; Induction; the Binomial Theorem - Chapter Review - Cumulative Review - Page 840: 1


$x=\pm3$ or $x=\pm3i$

Work Step by Step

If $|x^2|=9$, then $x^2=9\\x=\pm3$ or $x^2=-9\\x=\pm3i$
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