Kind of lost, I tried letting u=x+1, then follow through, but my answer does not match up with the right answer

the square root goes over the entire quantity

thanks

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- February 29th 2008, 04:47 PMdoctorgkIntegration by change of variable

Kind of lost, I tried letting u=x+1, then follow through, but my answer does not match up with the right answer

the square root goes over the entire quantity

thanks - February 29th 2008, 05:36 PMTwistedOne151
make the u substitution . Then , and . When you make this subtitution, factor the numerator and the denominator (they're both polynomials) and cancel common factors. The result is easily integrable.

--Kevin C. - February 29th 2008, 05:40 PMgalactus
Your sub will work fine.

Let

Make the subs and you get:

Now integrate that. Easier, huh?. - February 29th 2008, 05:46 PMpolymerase