Answer
$-32+24i$
Work Step by Step
Step 1: $(2+6i)(2+6i)$
Step 2: $2(2+6i)+6i(2+6i)$
Step 3: $4+12i+12i+36i^{2}$
Step 4: $4+24i+36(-1)$
Step 5: $4+24i-36$
Step 6: $-32+24i$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 8 - Review Exercises - Page 409: 11
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