Answer
$x=-5$
Work Step by Step
The given equation is
$x^2+10x=-25$
Add $25$ to each side.
$x^2+10x+25=-25+25$
Simplify.
$x^2+10x+25=0$
Graph the related function.
$f(x)=x^2+10x+25$
The $x-$intercept is $-5$.
Hence, the solution is $x=-5$.
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 - 9.2 - Solving Quadratic Equations by Graphing - Monitoring Progress - Page 491: 6
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