Evaluate the following integral: `int_0^2(x^2+x)dx`

Explanation

`int_0^2(x^2+x)dx`
`=[x^(2+1)/(2+1)]_0^2+[x^(1+1)/(1+1)]_0^2`
`=[x^3/3]_0^2+[x^2/2]_0^2`
`=2^3/3+2^2/2`
`=8/3+2`
`=14/3`