Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix A - Exercise Set: 44

Answer

$4x^{2}-16y^{2}$

Work Step by Step

Using the product of sum and difference of two terms $(a+b)(a-b)=a^{2}-b^{2}$, $(2x-4y)(2x+4y)=(2x)^{2}-(4y)^{2}=4x^{2}-16y^{2}$.
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