$\displaystyle \int\frac{x}{(2x+1)^4} dx$
Last edited by Punch; Aug 21st 2010 at 07:18 AM.
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Originally Posted by Punch $\displaystyle \int\frac{x}{2x+1}^4 dx$ that power 4 is where ?
edited.. sorry for that mistake
Substitute $\displaystyle u=2x+1$ so that $\displaystyle dx = \frac{du}{2}$
Let $\displaystyle u=2x+1$ and then $\displaystyle \displaystyle x=\frac{u-1}{2}~\&~dx=\frac{du}{2}$.
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