Simplify: 3x2−6x3x\frac{3x^2 - 6x}{3x}3x3x2−6x (assume x≠0x \neq 0x=0).
x−2x - 2x−2
x2−2x^2 - 2x2−2
3x−23x - 23x−2
x−6x - 6x−6