Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 10 - Section 10.3 - Multiplying Polynomials - Exercise Set: 24

Answer

$y^2-49$

Work Step by Step

$(y+7)(y-7)=y\cdot y-7\cdot y+y\cdot 7-7\cdot 7=y^2-49$
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