Posted by mwaba on Friday, March 23, 2012 at 5:02am.
oh well
x^2 + 8 x = -y^2 + 3.5 y
x^2 + 8 x + 16 = -y^2 + 3.5 y + 16
(x+4)^2 = -y^2 + 3.5 y + 16
y^2 - 3.5 y = -(x+4)^2 + 16
y^2 - 3.5 y + 3.0625 + (x+4)^2 = 19.0625
(x+4)^2 + (y-1.75)^2 = 4.366^2
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