Answer
$16x^2-25$
Work Step by Step
FOIL the terms in the parentheses in order to distribute the multiplication. Then combine like terms to simplify.
$(4x+5)(4x-5)$
$16x^2-20x+20x-25$
$16x^2-25$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Summary, Review, and Test - Review Exercises - Page 91: 77
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