题目
int x(x+2)dx = ( )A. (1)/(2) x^3 + x^2 + CB. (1)/(3) x^3 + 2x^2 + CC. 2x + 2 + CD. (1)/(3) x^3 + x^2 + C
$\int x(x+2)dx = (\quad)$
A. $\frac{1}{2} x^3 + x^2 + C$
B. $\frac{1}{3} x^3 + 2x^2 + C$
C. $2x + 2 + C$
D. $\frac{1}{3} x^3 + x^2 + C$
题目解答
答案
D. $\frac{1}{3} x^3 + x^2 + C$