College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Section 1.2 - Quadratic Equations - 1.2 Assess Your Understanding: 34

Answer

The solution is $\left\{-3, -1\right\}$.

Work Step by Step

Take the square root of both sides to obtain: $x+2 = \pm \sqrt{1} \\x+2 = \pm 1$ Subtract 2 to both sides to obtain: $x = \pm 1 - 2$ Split the solutions to obtain: $x_1 = 1-2 =-1 \\x_2 = -1-2 = -3$ Thus, the solution is $\left\{-3, -1\right\}$.
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