Answer
$-12-18i$
Work Step by Step
Step 1: $-3i(6-4i)$
Step 2: $-18i+12i^{2}$
Step 3: Since $i^{2}=-1$, we substitute this value of $i^{2}$ into the expression
Step 4: The expression becomes $-18i+12(-1)$
Step 5: Simplifying further, $-12-18i$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Review - Page 749: 135
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