Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 4 Quadratic Functions and Factoring - 4.7 Complete the Square - 4.7 Exercises - Quiz for Lessons 4.5-4.7 - Page 291: 1

Answer

$x=\pm 4$

Work Step by Step

$ 4x^{2}=64\qquad$ ...divide each term with $4$. $ x^{2}=16\qquad$ ...take square roots of each side. $ x=\pm\sqrt{16}\qquad$ ...evaluate $\sqrt{16}$ $x=\pm 4$
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