$\displaystyle \int{(x^2-x^1/3)}dx$

$\displaystyle \frac{x^2+1}{2+1}-\frac{x^1/3+1}{(1/3)+1}+c$

$\displaystyle \frac{x^3}{3}-\frac{x^4/3}{4/3}+c$

i tried to type in x to the 1/3 and x to the 4/3 but was unsuccesful, can anyone also help me with typing those in. Thanks!