Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Let .
The derivative of is .
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 of the chain rule is:
Now simplify:
The answer is:
2 3*log (x + 3) ------------- x + 3
3*(2 - log(3 + x))*log(3 + x) ----------------------------- 2 (3 + x)
/ 2 \ 6*\1 + log (3 + x) - 3*log(3 + x)/ ---------------------------------- 3 (3 + x)