Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.7 - Equations - Exercise Set: 73

Answer

$x=-2\pm\sqrt 3$

Work Step by Step

$x^2 + 4x + 1 = 0$ $x^2 + 4x+4=3$ $(x+2)^2=3$ $x+2=\pm\sqrt 3$ $x=-2\pm\sqrt 3$
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