Posted by Nikki on Tuesday, January 22, 2013 at 4:15pm.
how do u do 9x^230xy+2y^2 ?

math exam prep question  Steve, Tuesday, January 22, 2013 at 4:20pm
what do you mean by "do"? factor?
you can use the quadratic formula to get
x = (30±√(900+72y^2))/18
= (5±√(25+2y^2))/3

math exam prep question  Nikki, Tuesday, January 22, 2013 at 4:49pm
no simplify sorry forgot to specify..

math exam prep question  Steve, Tuesday, January 22, 2013 at 5:32pm
I don't see any way to simplify it.
It doesn't factor with integers, there are no common terms. I suppose by specifying as rotation matrix, it could be rewritten as a standard hyperbola on rotated axes, or intersecting lines, but I doubt that's what you had in mind.
I don't see much to do with it.
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