By parts is not required, you can do it this way...
$\displaystyle \int \frac{3+2x^2}{x} \, dx = \int \left(\frac{3}{x}+2x\right)\, dx = 3\ln x + x^2 +C$
By parts is not required, you can do it this way...
$\displaystyle \int \frac{3+2x^2}{x} \, dx = \int \left(\frac{3}{x}+2x\right)\, dx = 3\ln x + x^2 +C$