## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 564: 29

#### Answer

$r=\pm4$

#### Work Step by Step

$2r^2-32=0$ $2r^2=32$ $r^2=16$ $r=\sqrt 16$ $r=\pm 4$ There are two solutions, $\pm 4$

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