Answer
$x=9$ or $x=-7$
Work Step by Step
$x^2-2x-63=0$
$x^2+7x-9x-63=0$
$x(x+7)-9(x+7)=0$
$(x-9)(x+7)=0$
$x-9=0$ or $x+7=0$
$x=9$ or $x=-7$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 11 - Rational Expressions and Functions - Get Ready! - Page 661: 9
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