Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 8 - Polynomials and Factoring - 8-7 Factoring Special Cases - Practice and Problem-Solving Exercises - Page 527: 38



Work Step by Step

$80g^{2}-45=$ ...factor out the GCF, $5$. $=5(16g^{2}-9)$ ...write the difference as $a^{2}-b^{2}$. $=3[(4g)^{2}-3^{2}]$ ...factor using the rule for a difference of two squares. $=5(4g+3)(4g-3)$
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