3 / 2 \ \x + 7*x - 1/
/ 3\ d |/ 2 \ | --\\x + 7*x - 1/ / dx
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 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:
Now simplify:
The answer is:
2 / 2 \ \x + 7*x - 1/ *(21 + 6*x)
/ 2 \ / 2 2 \ 6*\-1 + x + 7*x/*\-1 + x + (7 + 2*x) + 7*x/
/ 2 2 \ 6*(7 + 2*x)*\-6 + (7 + 2*x) + 6*x + 42*x/