Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 9 - Quadratic Functions and Equations - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 552: 49


$c= 144$

Work Step by Step

$x^2-c=0$ has 12, -12 as solutions $12^2-c=0$ $144-c=0$ $144-c+c=0+c$ $144= c$
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