College Algebra 7th Edition

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

Chapter P, Prerequisites - Section P.5 - Algebraic Expressions - P.5 Exercises - Page 36: 59

Answer

x$^2$-9y$^2$

Work Step by Step

(A+B)(A-B)=A$^2$-B$^2$ (x+3y)(x-3y) (x)$^2$-(3y)$^2$ x$^2$-9y$^2$
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