yabo2k wrote:for the antiderivative of the second part then I would get

(2x/3)(e^3x/3)-(e^3x/3)((2/3)dx)

you really need to put an integral sign in there

- Martingale
**Posts:**350**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

yabo2k wrote:for the antiderivative of the second part then I would get

(2x/3)(e^3x/3)-(e^3x/3)((2/3)dx)

you really need to put an integral sign in there

I have them on my paper but I don't know how to put it into the computer. But I guess this is where I get stuck. I don't see how it can go any further than my first answer

- Martingale
**Posts:**350**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

yabo2k wrote:I have them on my paper but I don't know how to put it into the computer. But I guess this is where I get stuck. I don't see how it can go any further than my first answer

Martingale wrote:yabo2k wrote:for the antiderivative of the second part then I would get

(2x/3)(e^3x/3)-(e^3x/3)((2/3)dx)

you really need to put an integral sign in there

so did you find u, du, dv, and v again to get (2e^3x)/27

- Martingale
**Posts:**350**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

yabo2k wrote:so did you find u, du, dv, and v again to get (2e^3x)/27

no...not for the last part. just used the fact that one last time

so my final answer would be

((x^2e^3x)/3)-((2xe^3x)/9)-((2e^3x)/27)+C

((x^2e^3x)/3)-((2xe^3x)/9)-((2e^3x)/27)+C

- Martingale
**Posts:**350**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

yabo2k wrote:so my final answer would be

((x^2e^3x)/3)-((2xe^3x)/9)-((2e^3x)/27)+C

almost..check the sign on the (2e^3x)/27 term

[/quote]

You have it as a subtraction. So where did i go wrong?

You have it as a subtraction. So where did i go wrong?

- Martingale
**Posts:**350**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

yabo2k wrote:

You have it as a subtraction. So where did i go wrong?[/quote]

I have a subtraction for this small part of the problem. Combine this with the full problem.

- Martingale
**Posts:**350**Joined:**Mon Mar 30, 2009 1:30 pm**Location:**USA-
**Contact:**

did you see this post of mine?