Jawabanmu

2014-08-17T07:54:30+07:00
Integral 12 (x-1) (x^2+2x+1) dx
integral 12 (x^3+2x^2+x-x^2-2x-1) dx
integral 12 (x^3+x^2-x-1) dx
= 12 ( 1/4 x^4 + 1/3 x^3 - 1/2 x^2 - x ) +c
= 3 x^4 + 4 x^3 - 6 x^2 - 12x + c