/ 4\ \x / e
/ / 4\\ d | \x /| --\e / dx
Let .
The derivative of is itself.
Then, apply the chain rule. Multiply by :
Apply the power rule: goes to
The result of the chain rule is:
The answer is:
/ 4\ 2 / 4\ \x / 4*x *\3 + 4*x /*e
/ 4\
/ 8 4\ \x /
8*x*\3 + 8*x + 18*x /*e