Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 6 - Factoring, Solving Equations, and Problem Solving - 6.2 - Factoring the Difference of Two Squares - Problem Set 6.2 - Page 247: 8

Answer

$(7y-8x)(7y+8x)$

Work Step by Step

RECALL: A difference of two squares can be factored using the formula: $a^2-b^2=(a-b)(a+b)$ Using the formula above, we obtain: $49y^2-64x^2 \\= (7y)^2-(8x)^2 \\ = (7y-8x)(7y+8x)$
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