Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1-9 - Cumulative Review - Page 763: 71


$= 5[(2a - 3b)(2a+3b)]$

Work Step by Step

$20a^{2} - 45b^{2}$ $= 5(4a^{2} - 9b^{2)}$ $= 5[(2a - 3b)(2a+3b)]$
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