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 - 8-6 Factoring ax2+bx+c - Practice and Problem-Solving Exercises - Page 521: 17



Work Step by Step

You are given $3x^{2}$+23x-36. Factor it out: $3x^{2}$+27x-4x-36 -break out the middle value- ($3x^{2}$+27x)+(-4x-36) -group the first two and last two terms- 3x(x+9)-4(x+9) -Find the GCF of each grouping- (3x-4)(x+9) -factor out the common term- =(3x-4)(x+9)
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