partial fraction decomposition: denoms, using A+B+C method

[c4jester]

I am lost on a couple problems, can anyone help. We are working on Partial Fraction Decomposition, and these are two problems I am stuck on.

Problem 1
x^2-2x / x^4+x^3+16x^2+9x+63

Problem 2
2 / x^4+4x^3+11x^2-3x+9

we were working on breaking down the denom, and using the A+B+C method to solve. Any help would be great.

[stapel_eliz]

we were working on breaking down the denom...

Does the above mean that you're factoring the denominators, or does it mean something else?

...and using the A+B+C method to solve.

What is "the A+B+C method"? What equations are you solving? Or are you supposed to be decomposing the fractions?

Thank you!

[c4jester]

Yes, factoring the denominator end result is decomposition of the fraction. We are finding the LCM and then break apart the numerator.

Hopfully that helps your understanding better than mine.. lol

Thanks

[stapel_eliz]

To learn how to factor polynomials, please try here.

To learn how to use partial-fraction decomposition, please try here.

[anonmeans]

Problem 1
x^2-2x / x^4+x^3+16x^2+9x+63

Problem 2
2 / x^4+4x^3+11x^2-3x+9

Are you sure these are right? 'Cos I don't think these denominators factor.