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February 28, 2015

February 28, 2015

Posted by **Kit** on Tuesday, April 14, 2009 at 2:01pm.

x^2-4x+y^2+2y=-1

- Algebra 2 -
**Reiny**, Tuesday, April 14, 2009 at 3:08pmx^2-4x+y^2+2y=-1

x^2- 4x +**4**+ y^2 + 2y +**1**=-1 +**4 + 1**

(x-2)^2 + (y+1)^2 = 4

I assume you will recognize this as a circle.

- Algebra 2 -
**angel**, Friday, May 14, 2010 at 10:27amx^=13

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