Answer
$x=-2\pm\sqrt 3$
Work Step by Step
$x^2 + 4x + 1 = 0$
$x^2 + 4x+4=3$
$(x+2)^2=3$
$x+2=\pm\sqrt 3$
$x=-2\pm\sqrt 3$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.7 - Equations - Exercise Set - Page 106: 73
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