# Math Help - The last Laplace problem

1. ## The last Laplace problem

This is similar to others I have posted, but I'm sorry, I really just don't quite get it.

Determine the inverse Laplace transform of f(x) where
L{F(t)} = F(s) = 2(s^3)/((s^4) - 81)

2. Originally Posted by Hollysti
This is similar to others I have posted, but I'm sorry, I really just don't quite get it.

Determine the inverse Laplace transform of f(x) where
L{F(t)} = F(s) = 2(s^3)/((s^4) - 81)
2s^3/[(s^2+9)(s^2-9)]

Partial fractions in the following form,

[As+B]/(s^2+9) + [Cs+D]/(s^2-9)