Answer
-.5
Work Step by Step
We first simplify:
$$x^2 +2x+1 = x^2 \\ 2x+1 =0 \\ x=-.5$$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.4 - Quadratic Equations and Applications - 1.4 Exercises - Page 111: 104
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