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August 23, 2014

August 23, 2014

Posted by **chelsea** on Sunday, May 25, 2008 at 10:09pm.

5x^2-6y^2-30x-12y+9=0

- calculus -
**Reiny**, Sunday, May 25, 2008 at 11:42pm5x^2-6y^2-30x-12y+9=0

lets complete the square

5(x^2 - 6x + ___) -6(y^2 + 2y + ___) = -9

5(x^2 - 6x + 9) -6(y^2 + 2y + 1) = -9 + 45 - 6

5(x-3)^2 - 6(y+1)^2 = 30

divide both sides by 30

(x-3^2 /6 - (y+1)^2 /5 = 1

I will leave it up to you to identify the conic and its properties.

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