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 6.5 - A General Factoring Strategy - Exercise Set - Page 463: 96



Work Step by Step

$ 3x^{4}y^{2}-3x^{2}y^{2}\qquad$... factor out the common term, $3x^{2}y^{2}$ $=3x^{2}y^{2}(x^{2}-1)\qquad$...recognize the difference of two squares: $a^{2}-b^{2}=(a-b)(a+b)$ $=3x^{2}y^{2}(x-1)(x+1)$
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