help please

Question

help please

zaxoanl · Answer

$$(x-2)dx/(x^2(x-1)^2)$$

zaxoanl · Answer

so i did partial fraction and got x-2=(Ax+B)(x-1)^2 + C(x-1)x^2 + Dx^2

zaxoanl · Answer

i let x=1     -1=D
       x=0     -2=B
    x=2     0=(2A-B) +4C -4D

zaxoanl · Answer

there is something wrong and i wasn't able to find all the values

zaxoanl · Answer

no i'm suppose to find it

welshfella · Answer

I think there are only constants in the partial fractions

x - 2                         A               B                 C             D
----                 =   ---    +     ---      +       ---   +   ----
x^2(x - 1)^2           (x -1)     (x - 1)^2          x^2           x

welshfella · Answer

you only write  Ax + B  if its  a function degree 2  that 's prime  like x^2 + 4

welshfella · Answer

http://www.wolframalpha.com/input/?i=write+as+partial+fraction+%28x+-+2%29+%2F%5Bx%5E2%28x+-+1%29%5E2%5D there you go

zaxoanl · Answer

thank you  i get it now

welshfella · Answer

yw