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: 105

Answer

$x=\pm2$

Work Step by Step

$4x^2 - 16 = 0$ $4x^2 = 16$ $x^2=4$ $x=\pm\sqrt 4=\pm2$
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