Answer
$$x=10,-11$$
Work Step by Step
$$x(x+1)=110$$
$$x^2+x=110$$
$$x^2+x-110=0$$
$$(x+11)(x-10)=0$$
$$x=10,-11$$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter 1 - Section 1.5 - Applications and Modeling with Quadratic Equations - 1.5 Exercises - Page 118: 6
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