Asked by Kit

How do I complete the square for this problem?? It's on translating conic sections.

x^2-4x+y^2+2y=-1
Answered by Reiny
x^2-4x+y^2+2y=-1
x^2- 4x + <b>4</b> + y^2 + 2y + <b>1</b>=-1 +<b>4 + 1</b>
(x-2)^2 + (y+1)^2 = 4

I assume you will recognize this as a circle.
Answered by angel
x^=13
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