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 6.4 - Factoring Special Forms - Exercise Set: 12

Answer

$(4-7y)(4+7y)$

Work Step by Step

RECALL: A difference of two square can be factored using the formula $a^2-b^2=(a-b)(a+b)$ The given binomial can be written as: $=4^2-(7y)^2$ The binomial above is a difference of two squares. Factor the difference of two squares using the formula above with $a=4$ and $b=7y$ to obtain: $=(4-7y)(4+7y)$
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