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Mathematics 14 Online
OpenStudy (anonymous):

HELP!!

OpenStudy (anonymous):

please explain each step

OpenStudy (anonymous):

can you please solve this with me step by step?

OpenStudy (anonymous):

you're asked to integrate g'(x)

OpenStudy (anonymous):

can you please solve this with me? ive listed this question so much because i dont understand it but nobody answers hahaa

OpenStudy (anonymous):

can you factor the top?

OpenStudy (anonymous):

(x+4)(x-4)

OpenStudy (anonymous):

actually my bad, can you do long divison?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

ok then do it

OpenStudy (anonymous):

wait im not sure

OpenStudy (anonymous):

are you sure thats what im supposed to do ?

OpenStudy (anonymous):

cause i get weird numbers

OpenStudy (anonymous):

yes, to integrate this, you will have to do long division first

OpenStudy (anonymous):

(x^-16)/(x-2) = x + 2 - 12/(x-2), now can you integrate

OpenStudy (anonymous):

can you explain, im confused on this question..

OpenStudy (anonymous):

you can not (x^2-16)/(x-2) directly. So you have to do long division. since (x^-16)/(x-2) = x + 2 - 12/(x-2), the integral of (x^2-16)/(x-2) is the same as the integral of x+2 - (12/(x-2)

OpenStudy (anonymous):

can not integrate*

OpenStudy (anonymous):

integral of x = (1/2)x^2 integral of 2 = 2x integral of 12/(x-2) = 12ln|x-2| so (1/2)x^2 + 2x - 12|ln-2| + C

OpenStudy (anonymous):

ok got it so far

OpenStudy (anonymous):

(1/2)x^2 + 2x - 12ln|x-2| + C

OpenStudy (anonymous):

so g(x) =(1/2)x^2 + 2x - 12ln|x-2| + C you're given g(3) = 4. I.e (x,y) = (3,4). Plug the point in to solve for C.

OpenStudy (anonymous):

-144? @sourwing

OpenStudy (anonymous):

thank you !

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