Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - 1.4 Quadratic Equations - 1.4 Exercises: 20

Answer

The solutions are $x = 8,-8$

Work Step by Step

$x^2 - 64= 0$ $(x+8)(x-8) = 0$ $x-8= 0$ $x = 8$ OR $x + 8= 0$ $x = -8$ The solutions are $x = 8,-8$
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