Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 4 - Quadratic Functions and Equations - 4-6 Complete the Square - Practice and Problem-Solving Exercises: 12

Answer

$x=\pm4$

Work Step by Step

First, we divide both sides by 5 to isolate $x^2$ to get $x^2=16$. Take the square root of both sides to get $x=\pm4$.
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