Question 171463
Multiplication of Rational Expression. Can someone help me understand this complicated stuff? 
x^2/x^2-4 * x^2-5x+6/x^2-3x 
I think I have to cancell out some things like the x square before I start. Right?
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Cancel anything you can, so as to simplify things.

{{{x^2/(x^2-4) * (x^2-5x+6)/(x^2-3x)}}}
={{{x/(x^2-4) * (x^2-5x+6)/(x-3)}}}
={{{x/(x^2-4) * (x-2)*(x-3)/(x-3)}}}
={{{x/(x^2-4) * (x-2)}}}
={{{x/((x-2)*(x+2)) * (x-2)}}}
=x/(x+2)