how do I get the answer shown in the attached problem? when I tried it out, I couldn't get the numerator to 1.

Thanks!

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- Jun 2nd 2010, 09:41 AMcalculus0partial fractions
how do I get the answer shown in the attached problem? when I tried it out, I couldn't get the numerator to 1.

Thanks! - Jun 2nd 2010, 10:10 AMUnknown008
First, factor your denominator.

remember that:

Can you do it now? - Jun 2nd 2010, 08:31 PMmr fantastic
- Jun 7th 2010, 08:28 PMwilly0625
We write

With a bit of algebraic manipulation of the above equality(actually identity), we can find out that

.(There are several ways to do this. One of them is writing the right hand side as a single fraction and we get an equation by equating the denominator with 2)

So we have