Question

Simplify the following rational function: 1/x-1/x-1

Answer 1

Depends what you call simple:
1/(x-2)^2 or (x-2)^-2

Answer 2

(x-1)'s instead of (x-2) sorry D:

Answer 3

Assuming you mean for the denomintor of the second fraction to be x-1 you would have to get a LCD of x(x-1)\[1/x-1/(x-1)=(x-1-x)/(x(x-1)=-1/(x^2-x)\]