Answer
See below
Work Step by Step
Divide both sides by $5$:
$$x^2=2\\
\rightarrow x= \pm \sqrt 2$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 5 Polynomials and Polynomial Functions - 5.9 Write Polynomial Functions and Models - 5.9 Exercises - Mixed Review - Page 399: 39
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