Answer
$x=-5, 10$
Work Step by Step
The factors of the equation are $(x-10)$ and $(x+5)$.
After setting each to $0$, $x$ is $10$ and $-5$.
Plugging in each will give you the square root of $0$ which is $0$, a real number.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.8 - Inequalities - 1.8 Exercises - Page 89: 102
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