Let .
The derivative of is itself.
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Apply the power rule: goes to
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
/ 2\ x*(-1 + x) \2 + (-1 + 2*x) /*e
/ 2\ x*(-1 + x) (-1 + 2*x)*\6 + (-1 + 2*x) /*e