If
so far i have:
i let
Mr F says: du = 2x dx =>dx = du/(2x). This will lead nowhere for you because the x will cause trouble. The integral cannot in fact be found using a finite number of elementary functions.
change the limits from x=5 to u=24, x=-1 to u=0 and have
Mr F says: Wrong. What happened to the 1/x part of du ....?
which gives me -1.788 but that isn't any of the answers provided!