So I know

I am pretty sure I am right up to this part and I know I have to use partial fractions, but everytime I do I get a different answer and they are never close to what the answer key's answer is:

Much help would be appreciated!

- Nov 2nd 2009, 09:07 PMPinkkSolving a nonhomogeneous second order ODE using Laplace transform

So I know

I am pretty sure I am right up to this part and I know I have to use partial fractions, but everytime I do I get a different answer and they are never close to what the answer key's answer is:

Much help would be appreciated! - Nov 3rd 2009, 01:05 AMmr fantastic
Well, you need to get the correct partial fraction decomposition and that's just paleontological spade work. After which you get:

and the inversion is simple. However, the 6 is clearly wrong (it should be a 2) so I suspect there's a small error somewhere in your expression for L[y].