Thursday
May 28, 2015

Homework Help: Geometry

Posted by Emory on Saturday, September 5, 2009 at 10:28pm.

Solve the quadratic equation.
13) x2 - x = 72
A) -8, 9
B) -8, -9
C) 1, 72
D) 8, 9

Can some one please check my answer and let me know if I did it the right way.
x2-x-72=0
(x-9)(x-8)=0
so the answer is D
8,9

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