Inverse Laplace Transform help

Hi guys, I'm getting a headstart on my uni course starting in Fall, and have started reading the maths book we will be using. I'm currently on the Laplace Transform chapter - I haven't really had much trouble doing the questions so far, except when I reached the following:

How do I find the inverse laplace transform of: H(s) = 15/[ (s + 2.3222)(s^{2} + 3.6778s + 6.4594)]

Could I get some help please.

Re: Inverse Laplace Transform help

In what context did you come across this function? This is what Wolfram gets...

Re: Inverse Laplace Transform help

Exactly! I also tried wolfram to try to understand how to do it - but the answer on there is more confusing!

This question is a maths book from our uni for the upcoming year.

The transfer function I posted on the 1st post is for a 3rd order Bessel filter. And The question asks to find the **impulse response h(t)**. The impulse response h(t) of H(s) is the inverse laplace transform of H(s), which is what I've been trying to do for a good day or so now.