Trying to integrate x raised to e power

ceb0196 · #1 $Old$ April 26th, 2009, 09:08 PM

I can't seem to figure this out. I did not learn properties of logs in college algebra very well, and I think that might be part of why I'm stumped.

Question is: find the anti-derivitive of x^2e + e^x dx. I can integrate e^x dx by simply using rules of integration, but I'm stuck on x^2e dx.

Help please??

TheEmptySet · #2 $Old$ April 26th, 2009, 09:12 PM

Quote:

Originally Posted by ceb0196 $View Post$

I can't seem to figure this out. I did not learn properties of logs in college algebra very well, and I think that might be part of why I'm stumped.

Question is: find the anti-derivitive of x^2e + e^x dx. I can integrate e^x dx by simply using rules of integration, but I'm stuck on x^2e dx.

Help please??

Dont for get e is a constant

So the power rule tells us that

$\int x^{n}dx=\frac{x^{n+1}}{n+1}$

so

$\int x^{2e}dx=...$

derfleurer · #3 $Old$ April 26th, 2009, 09:13 PM

e is just a constant. Raise the power and divide by that power.

Edit: Guess i'll cut out the answer, then.

ceb0196 · #4 $Old$ April 26th, 2009, 09:13 PM

GAH, that's what i started to do and talked myself out of it. Thanks for your quick replies!