This is not the given substitution, nor would it help in this instance.(Original post by BananaPie)
Let u = 2+x
Now ur equation becomes (u-2)(u)^3 du. U can easily multiply that in and integrate.
A general rule for an equation like that is that u substitute the one within the bracket that has the indicy. E.g (5x+4)^5 let u = 5x+4. Do not include the indicy though
C4 Integration by substition Watch
- 04-04-2013 14:23
- 04-04-2013 14:27
- 04-04-2013 14:29