1. The problem statement, all variables and given/known data Find the impulse response of a system with transfer function H(S) = (s+3)/(s^2+2s+1) or H(S)=(s+3)/[(s+1)^2] 2. Relevant equations Poles are s1=s2=-1 y = Ae^st + Be^st 3. The attempt at a solution In my notes I do not have an answer for the case when there is only one pole (root) to the denominator of the transfer function. I know the cover-up method and it doesn't look like it will work here. Also tried solving for the step response and differentiating to get the impulse response as shown here: http://tinyurl.com/c5uhzcv But I cannot find the step response that way either. Thanks!