I want to integrate:(adsbygoogle = window.adsbygoogle || []).push({});

1/[(x + 1)*(x^2 + x +1)] dx

Now the quadratic has complex routes, and we have not done any integration with that yet, so I broke it up into its partial fractions.

A/(x +1) + (Bx + C)/(x^2 + x +1)

But I cannot seem to find the numbers A B C. mamybe I am just missing something real obvious?? Any pointers in the right direction? Cheers guys.

PS. Is the proof of the theory that you can break up fractions like that beyond a first year math for science course?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Rational Function Integration

**Physics Forums | Science Articles, Homework Help, Discussion**