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: 35

Answer

$-40$

Work Step by Step

$-10i \cdot -4i = 40i^2 = 40(-1) = -40$
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