express the equation 5x^2 + 38x - 8xy - 22y - y^2 + 47 = 0

in the form AX^2 + BY^2 = 1?

No clue how to even aproach, cheers all.

Rodregez

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- Feb 23rd 2010, 11:41 AMTherodregezCircle, Hyperble?
express the equation 5x^2 + 38x - 8xy - 22y - y^2 + 47 = 0

in the form AX^2 + BY^2 = 1?

No clue how to even aproach, cheers all.

Rodregez - Feb 23rd 2010, 11:44 AMicemanfan
You can't put this equation in that form. You can't even put it in the form $\displaystyle A(x + C)^2 + B(y + D)^2 = 1.$