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 528: 51



Work Step by Step

$64r^{6}-144r^{3}+81=$ ...write as the square of a binomial. ...($a=8r^{3},\ b=9,)\ \quad $test the middle term: $2ab=2(8r^{3})(9)=144r^3$) $=(8r^{3}-9)^{2}$
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