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July 6, 2015

Homework Help: Algebra- is my answer right

Posted by Jen on Tuesday, February 1, 2011 at 7:28pm.

Graph the Circle
x^2+y^2+4x-2y-20=0

I get:
(x^2+4x)+(y^2-2y)=20
(x^2+4x+4)+(y^2-2y+1)=20+16+4
(x+2)^+(y-1)^2=(40/2)^2

But I don't think its right can you help me with what I did wrong? Thanks

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