Don't know the steps in finding this derivative.
But the derivative is
The answer is:
/ 2\ \x / x *(x + 2*x*log(x))
/ 2\ \x / / 2 2\ x *\3 + 2*log(x) + x *(1 + 2*log(x)) /
/ 2\ \x / /2 3 3 \ x *|- + x *(1 + 2*log(x)) + 3*x*(1 + 2*log(x))*(3 + 2*log(x))| \x /