College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.4 - Page 142: 16



Work Step by Step

(2+7i)(2-7i) 4-14i+14i-49$i^{2}$ Double Distribution (FOIL) 4-49(-1) Combine like terms and use the property $i^{2}$=-1 4+49 Simplify 53 Simplify
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