Apply the product rule:
; to find :
Apply the power rule: goes to
; to find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Apply the power rule: goes to
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
The result is:
Now simplify:
The answer is:
2 2 x *(-4 + 2*x) + 2*x*(x - 2)
/ 2 2 \ 2*\x + (-2 + x) + 4*x*(-2 + x)/