You can answer it easily by just using synthetic division.
The answer is:
Q(x) = 6x^3 + 12x^2 +13x + 14 and the remainder is 11.
It could be like this:
Q(x) = 6x^3 + 12x^2 + 13x + 14 + 11/x-1
Synthetic division:
(1) 6 6 1 1 -3
6 12 13 14
= 6 12 13 14 11
x^3 x^2 x c r
