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## Homework Statement

Find the inverse laplace transformation of [tex]\frac{2s^2 +3s - 2}{s(s+1)(s-2)}[/tex]

## Homework Equations

## The Attempt at a Solution

[tex]L^{-1} \frac{2s^2 +3s - 2}{s(s+1)(s-2)} = L^{-1}\frac{1}{2} + L^{-1}\frac{1}{s+1} +2 L^{-1}\frac{1}{s-2} = 1 - e^{-t} + 2e^{2t}[/tex]

Have I made a mistake somewhere?

and does anyone know where I can find a web site practice problems (preferably with answers so I can check) similiar to this one?