Don't know the steps in finding this derivative.
But the derivative is
The answer is:
4 - 2*x / 12 - 6*x\
(x*3) *|-2*log(x*3) + --------|
\ 3*x /
/ -2 + x\
| 2 2 - ------|
4 - 2*x | /-2 + x \ x |
2*(3*x) *|2*|------ + log(3*x)| - ----------|
\ \ x / x /
/ 2*(-2 + x) / -2 + x\ /-2 + x \\
| 3 3 - ---------- 6*|2 - ------|*|------ + log(3*x)||
4 - 2*x | /-2 + x \ x \ x / \ x /|
2*(3*x) *|- 4*|------ + log(3*x)| + -------------- + ----------------------------------|
| \ x / 2 x |
\ x /