Originally Posted by

**Mike5055** So my professor was going over integration by part and using the tabular method. He use the problem:

(the integral sign, big swoosh like thing) (3t+9)^3(2t+e^2t)dt

Now, to find the derivative, I believe he used the chain rule, perhaps? Only thing is, I am not certain how I would use the chain rule on this one? Somehow, I do recall him showing on the outside he obtained

3x3(something) for the first derivative

and

3x2x9(something) for the second derivative

But I do not know how.

Any help would be appreciated!