Answer
The answer is below.
Work Step by Step
We use completing the square to obtain:
$ x^2 +4x -2/3 = 0 \\ x^2 +4x = 2/3 \\ x^2 + 4x +4 = 14/3 \\ (x+2)^2 = 14/3 \\ x+2 = \sqrt{14/3} \\ x = \frac{-6 \pm\sqrt{42}}{3}$$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 10 - Quadratic Equations - 10.2 - Completing the Square - Problem Set 10.2 - Page 448: 17
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