Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.7 - Complex Numbers - Exercise Set: 31

Answer

$-12$

Work Step by Step

$6i \cdot 2i = 12i^2 = 12(-1) = -12$
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