Question

evaluate the integrals..can someone check if i set it up right?

*Postin prob

Answer 1

\[\int\limits_{?}^{?}(x ^{2}-5x)e^xdx\] ignore the ?s

i made u=x^2 du= 2x
dv=(1-5x)e^x, v= e^x-5xe^x

is v wrong?

Answer 2

yeah, v is wrong :)

Answer 3

could u explain how i get it again? lol i need a refresher cuz i did it so long ago<

Answer 4

first, you can simplify the equation above. it like this
(x^2 - 5x) * e^x = x^2 * e^x - 5x * e^x

Answer 5

ok did that first

Answer 6

so, the integral above becomes