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: 72

Answer

$x=1\pm\sqrt 6$

Work Step by Step

$x^2 - 2x - 5 = 0$ $x^2-2x+1=6$ $(x-1)^2=6$ $x-1=\pm\sqrt 6$ $x=1\pm\sqrt 6$
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