- #1
I dun get it
- 17
- 0
[PLAIN]http://img517.imageshack.us/img517/6328/q75c.gif
I know that you have to substitute u=2x+1 into the second equation, but I don't know where to go from there.
I know that you have to substitute u=2x+1 into the second equation, but I don't know where to go from there.
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