# Math Help - Exponential Rule of this integral?

1. ## Exponential Rule of this integral?

S (2x+1)e^((x^2)+x)

?? the whole lecture section is missing from this section in my book, :-/ go figure.

2. Put x^2 + x = t

So

(2x + 1)dx= dt

Integration now is

$\int e^tdt$

$= e^t+c$

$= e^{x^2+x}+c$

any more help required