Algebra and Trigonometry 10th Edition

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 110: 35


Solutions: $x=-2+\sqrt 2$ $x=-2-\sqrt 2$

Work Step by Step

$x^2+4x+2=0$ $x^2+2(2)x+2^2+2=2^2$ $(x+2)^2=4-2$ $(x+2)^2=2$ $x+2=±\sqrt 2$ $x=-2+\sqrt 2$ or $x=-2-\sqrt 2$
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