Jawabanmu

2014-08-02T07:35:35+07:00
Integral x (x + 2)³ dx
integral x (
x³ + 6x² + 12x + 8) dx
integral x
⁴ + 6x³ + 12x² + 8x dx
1/5x⁵ + 6/4x⁴ + 12/3x³ + 8/2 x² + C
1/5x⁵ + 3/2x⁴ + 4x³ + 4x² + C
 
2014-08-02T08:02:10+07:00
Mungkin begini

integral x(x+2)³ 

cari turunan (x+2) = 1

integral x(x+2) = 1/1 x 1/(3+1) (x+2) pangkat 3+1
                     = 1/4 (x+2) pangkat 4 + C