Problem Solving

if X does not equal 2, then [3x^2(x-2)-(x+2)]/(x-2) =

a. 3x^2 - x+2
b. 3x^2 + 1
c. 3x^2
d. 3x^2-1 (ans)
e. 3x^2-2

I'm having some difficulty on this question. i was able to get it down to:

3x^2-(x+2) but apparently that answer is incorrect. Can someone pls explain this to me?

I saw this on question on a separate thread, but no answer was issued...

Any help on this is greatly appreciated.