Apply the product rule:
; to find :
Apply the power rule: goes to
; to find :
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 result is:
Now simplify:
The answer is:
1 - x x ___ e \/ E - -- x
1 - / 1 3\ x |- -- - -|*e | 2 x| \ x / ------------- 3 x