Answer
$4 - y^{10}$
Work Step by Step
RECALL:
$(a-b)(a+b)=a^2-b^2$
Use the formula above with $a=2$ and $b=y^5$ to obtain:
$=2^2-(y^5)^2
\\=4 - y^{10}$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.4 - Polynomials - Exercise Set - Page 56: 40
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