1. The problem statement, all variables and given/known data the questions asks to determine inverse laplace transform of s/(s+4)^4 2. Relevant equations 3. The attempt at a solution this can supposedly be done just using laplace transform tables so im guessing i need to simplify that to something thats workable but i dont know how. the solution is e^(-4t) (t^2/2 - (2/3) t^3) anyone can help in directing me how to simplify that equation before i use tables to inverse?