Question

integral of 625x^3(e^5x), use integration by parts

Answer 1

i know how to start it off, i just keep getting the wrong anser tho

Answer 2

long integration involves, select 625x^3 as a first function

Answer 3

what did u get?

Answer 4

i got \[e^5x(125x^3-75x^2-30x-6)+C\]

Answer 5

e^(5x)*

Answer 6

when u select 625x^3 as a first function, u write the derivative of it,right?

Answer 7

power must be reduced

Answer 8

i followed an example in the book, and it used x^3 as the u value, and 625e^5x as va

Answer 9

v

Answer 10

u mean the reduction formula

Answer 11

use 5x = t
t^3 (e^t)dt

Answer 12

then use integral by parts

Answer 13

what reduction formula did u use?

Answer 14

him is right

Answer 15

m e?

Answer 16

ok i got the write answer now,lol sorry nvrmind, but thanks guys :)

Answer 17

things got easy now

Answer 18

no him it wasnt you :)

Answer 19

ok amk....

Answer 20

glad 2 help...

Answer 21

so him...u feeling fresh now? :)

Answer 22

thnx fr asking...yeah better now..nthn a coke wont heal

Answer 23

medal for ur determination :)

Answer 24

u must feel much better now:P

Answer 25

yeah thnx

Answer 26

:)

Answer 27

well i just did all of this work without reading any of that above stuff so here you go lol

Answer 28

myin: the anser was actually (125x^3-75x^2+30x-6)e^5x +C, u were right with the first two numbers, but thanku so much for taking the time to work it out :)