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 - 8-8 Factoring by Grouping - Practice and Problem-Solving Exercises - Page 531: 18



Work Step by Step

$12k^{3}-27k^{2}-40k+90=$ ...factor out the GCF of each group of two terms. $=3k^{2}(4k-9)-10(4k-9)$ ...factor out the common factor, $4k-9$. $=(3k^{2}-10)(4k-9)$
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