Answer
$2x-25$
Work Step by Step
Using $(a+b)(a-b)=a^2-b^2$, the expression $
\left( \sqrt{2x}-5 \right)\left( \sqrt{2x}+5 \right)
$ simplifies to
\begin{array}{l}
\left( \sqrt{2x} \right)^2-(5)^2
\\\\=
2x-25
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 9 - Cumulative Review - Page 601: 23e
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