I can't figure this out.

i need the nth derivative.

y=(x^2+x-1)/(x-1)

f'x = (x^2-2*x)/(x-1)^2

f''x = 2/(x-1)^3

f'''x = -6/(x-1)^4

f''''x = 24/(x-1)^5

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- May 12th 2010, 07:24 AMalexgonth derivative
I can't figure this out.

i need the nth derivative.

y=(x^2+x-1)/(x-1)

f'x = (x^2-2*x)/(x-1)^2

f''x = 2/(x-1)^3

f'''x = -6/(x-1)^4

f''''x = 24/(x-1)^5 - May 12th 2010, 07:32 AMFailure