Answer: x^2-16/x+4
5/3y-2-4/9y^2-4
3x-6/x-2
5/3y-4/y^2
(x-5/x^2-3x-10)(x+2/x^2+x-12)
4z^2-4z-15/2z^2+z-15
Explanation:
Dude this is Romanian not Spanish