SOLUTION: Please help me put this in standard form x^2 - 4x + y^2 + 8y

SOLUTION: Please help me put this in standard form x^2 - 4x + y^2 + 8y - 16 = 0

Question 195772: Please help me put this in standard form x^2 - 4x + y^2 + 8y - 16 = 0
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
put this in standard form x^2 - 4x + y^2 + 8y - 16 = 0
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Complete the square on the x-terms and the y-terms separately:
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x^2-4x + 4 + y^2 + 8y + 16 = 16 + 4 + 16
(x - 2)^2 + (y + 4)^2 = 36
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[(x-2)^2)/36] + [(y+4)^2)/36] = 1
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Cheers,
Stan H.
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