Ira S. answered • 08/26/14
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Let u = 4-x. This also means x = 4- u. So substitute in and get ..... integral (4-u +3)/u^5 or integral (7-u)/u^5. break this into 2 fractions 7/u^5 - u/u^5 or 7u^-5 - u^-4. Hope you can finish it.
Theodore K.
yes i know these steps, however i'm stuck at (7/4u^4)-(1/3u^3)
iknow i have to substitute u=4-x but i can't reach the final form (5+4x)/12*(4-x)^4
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08/27/14
Theodore K.
okay i was sleepy XP, i can't believe i couldn't do that XD, i solved it now :D
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08/27/14
Ira S.
Good deal. Sleep is important.
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08/27/14
Phillip R.
08/26/14