Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Cumulative Review - Page 601: 23e

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}
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