Integrating, Long Division, Completing the Square Practice Test

$\frac{3}{2}\arctan\left(\frac{x-2}{2}\right)+C$

$\frac{3}{2}\ln\big((x-2)^2+4\big)+C$

$3\arctan\left(\frac{x-2}{2}\right)+C$

$\frac{3}{(x-2)^2+4}+C$

$\frac{3}{2}\arctan\left(\frac{x}{2}\right)+C$