2x - 9/x^2 - 5x + 6 - x + 3/x - 2 - 2x + 1/3 - x

a) 2x-9/ x^2 - 5x + 6 - x+3/x-2 - 2x+1/3-x
b) 2x+1/x^2 -7x + 12 - x+3/ x-4 - 2x + 1/ 3-x