Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 564: 19

Answer

There are two solutions for the equation, $\pm 3$.

Work Step by Step

$2x^2-18=0$ $2x^2=18$ $x^2=9$ $x=\pm 3$ There are two solutions for the equation, $\pm 3$.
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