Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 6 - Section 6.1 - The Greatest Common Factor and Factoring by Grouping - Exercise Set - Page 428: 114



Work Step by Step

If we take the GCF to be negative, $-4x$ , then $-4x^{2}+12x=(-4x)(x)+(-4x)(-3)=-4x(x-3)$ (OK) If we take the GCF to be positive, $4x $, then $-4x^{2}+12x=4x(-x)+4x(3)=4x(-x+3)$ (OK)
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