Multiply and express the result in its simplest forum:
2x/x-3×1/x^3
Do you mean
2x/(x-3) × 1/x^3 ?
If so, change the x/x^3 to 1/x^2. This leaves you with
2/[x^2*(x-3)]
2x/x-3×1/x^3
2x/(x-3) × 1/x^3 ?
If so, change the x/x^3 to 1/x^2. This leaves you with
2/[x^2*(x-3)]