2 (6*x + 2) *log(2*x + 7)
(6*x + 2)^2*log(2*x + 7)
Apply the product rule:
; to find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
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 derivative of the constant is zero.
The result is:
The result of the chain rule is:
; to find :
Let .
The derivative of is .
Then, apply the chain rule. Multiply by :
Differentiate term by term:
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 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*(6*x + 2) (24 + 72*x)*log(2*x + 7) + ------------ 2*x + 7
/ 2 \ | 2*(1 + 3*x) 12*(1 + 3*x)| 8*|9*log(7 + 2*x) - ------------ + ------------| | 2 7 + 2*x | \ (7 + 2*x) /
/ 2\ | 18*(1 + 3*x) 4*(1 + 3*x) | 16*|27 - ------------ + ------------| | 7 + 2*x 2 | \ (7 + 2*x) / ------------------------------------- 7 + 2*x