3x - 1 / (x-1)(x^2 + x + 1) in partial fractions.
I have an answer for you but I am tired of guests deleting their questions after they receive an answer.
I do realise that you probably have no intention of doing this but when systems are abused it is unfortunate but there is a penalty price for everyone.
So I will answer you question when you become a member and present it under your username :)
Sorry for the inconvenience and thanks for understanding. :D