Answer
$x=5$ and $x=-5$
Work Step by Step
The given equation is
$\Rightarrow x^2=25$
Take the square root of each side.
$\Rightarrow x=\pm\sqrt {25}$
Simplify.
$\Rightarrow x=\pm 5$
Hence, the solutions are $x=5$ and $x=-5$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 9 - Solving Quadratic Equations - 9.3 - Solving Quadratic Equations Using Square Roots - Exercises - Page 501: 3
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