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: 38

Answer

$35 + 20i$

Work Step by Step

$5i(4 - 7i) = 20i - 35i^2 = 20i - 35(-1) = 35 + 20i$
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