Question 793318
 3x/x-1 - x/x-2
Common denominator = (x - 1)(x - 2)
3x(x - 2) - x(x - 1) / (x - 1)(x - 2)
3x^2 - 6x - x^2 + x / (x - 1)(x - 2)
2x^2 - 5x/ (x - 1)(x - 2)
Hope this helps.
:-)