n x
x^n
Apply the power rule: xnx^{n}xn goes to nxnx\frac{n x^{n}}{x}xnxn
Now simplify:
The answer is:
n n*x ---- x
n n*x *(-1 + n) ------------- 2 x
n / 2 \ n*x *\2 + n - 3*n/ ------------------- 3 x