College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Section P.6 - Factoring - P.6 Exercises: 99

Answer

4ab

Work Step by Step

$(a+b)^{2}-(a-b)^{2}=[(a+b)-(a-b)][(a+b)+(a-b)]=(2b)(2a)=4ab$
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