Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 8 - Polynomials and Factoring - 8-8 Factoring by Grouping - Practice and Problem-Solving Exercises - Page 519: 21



Work Step by Step

$12y^{3}=2.2.3.y.y.y$ and $4y^{2}=2.2.y.y$ Hence, $GCF=$$2.2.y.y=4y^{2}$ $9y=$$3.3.y$ and $3=3.1$ Hence, $GCF=3$ After grouping; $=(12y^{3}+4y^{2})-(9y+3)$ $=4y^{2}(3y+1)-3(3y+1)$ $=(3y+1)(4y^{2}-3)$
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