Algebra: A Combined Approach (4th Edition)

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

Chapter 5 - Section 5.5 - Multiplying Polynomials - Exercise Set: 33

Answer

$a^{2}+5a-14$

Work Step by Step

$(a+7)(a-2)=a(a-2)+7(a-2)=(a)(a)+(a)(-2)+(7)(a)+(7)(-2)=a^{2}-2a+7a-14=a^{2}+5a-14$
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