SOLUTION: x^2+y^2+2x-4y-4=0 complete square and state the center and the radius or the circle

SOLUTION: x^2+y^2+2x-4y-4=0 complete square and state the center and the radius or the circle

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Question 200112: x^2+y^2+2x-4y-4=0 complete square and state the center and the radius or the circle
Answer by orca(409) (Show Source): You can put this solution on YOUR website!
First moving the constant term to the right side, we have

Re-arranging the terms on the left side, we get

Add 1 and 4 to both sides, we have

So the center of the circle is (-1, 2). The radius is 3.

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