Answer
$x=100$
Work Step by Step
Solve for $x$:
$$8+\sqrt x=18$$ $$\sqrt x=10$$ $$x=10^2=100$$
Check the solution:
$$8+\sqrt{100}\stackrel{?}{=}18$$ $$8+10\stackrel{?}{=}18$$ $$18=18\checkmark$$
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 10 - Radical Functions and Equations - Chapter Review - Page 577: 10
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