Question

I am totally lost. Please help :(

Answer 1

http://imagizer.imageshack.com/img923/2144/INBGK4.png

Answer 2

Integration by parts but confused by the notation

Answer 3

you gotta use parts twice, it is a pain

Answer 4

first time \[u=x^2,du=2xdx, dv=e^{-3}dx,v=-\frac{1}{3}e^{-3}\]

Answer 5

you get \[-\frac{2}{3}e^{-3x}x^2+\frac{2}{3}\int xe^{-3}dx\]

Answer 6

then repeat

Answer 7

okay

Answer 8

ohhhhh I get it now. I didnt understand what they were asking for. Now it makes sense. I got 17