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May 22, 2015

Homework Help: Algebra

Posted by Cynthia on Wednesday, April 2, 2008 at 4:08pm.

I am having trouble with this problem. I have done it several times and come up with two different answers. Can someone tell me what I am doing wrong?

Write the quadratic function in the form a(x-h)^2+k

y=x^2-2x-9
(x^2-2x)-9
(x^2+2x+1-1)-9
(x^2+2x+1)
answers
(x+1)^2 or x^2-2x-9=y

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