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Is this integration correct

Hey is this correct??
I used by substitution instead of by parts but got wrong answer
The actual answer is
2/15(3x+2)(x+1)^3/2 + cIMG_2702.jpeg
(edited 10 months ago)
Original post by Alevelhelp.1
Hey is this correct??
I used by substitution instead of by parts but got wrong answer
The actual answer is
2/15(3x+2)(x+1)^3/2 + c


Perhaps see what happens if you take a factor of (x + 1)^(3/2) outside your solution.

Edit: ...and I think you'll find that your "3x + 2" is actually "3x - 2".
(edited 10 months ago)
Reply 2
Original post by old_engineer
Perhaps see what happens if you take a factor of (x + 1)^(3/2) outside your solution.

So it is correct just not simplified??

Also can I plz check the edit I asked another q right now too
Reply 3
Original post by Alevelhelp.1
So it is correct just not simplified??

Also can I plz check the edit I asked another q right now too


your answer is equivalent - assuming you did mean (3x-2) not (3x+2) in your "actual answer" in the first post :smile:

There are often several ways to evaluate a given integral, which is a good way of checking your understanding when you're not in exam conditions.

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