Originally Posted by

**Kbotz** I have been trying to get my head around this question, but i just can't seem to do it.

Find the Inverse Laplace transform for:

1/s^2(s+1)^2

**My steps:**

Partial fractions

1/s^2(s+1)^2 = A/s + B/s^2 + C/(s+1) + D/(s+1)^2

Then cross multiplication and collection of like terms

1 = (A+B)(s+1)^2 + C(s+1) +(C+D)s^2 + A(s)

then created 4 equations by substituting the following s values: -1,0,1,2

Then used simultaneous equation solver on my calculator to solve the 4 equations, the calculator shows up with math error.

Where am i going wrong?

Point me in the right direction please.