Laplace transform (Using tables) of following function, is this correct?

$$4H(t-3)\text{}.{t}^{2}$$

For my answer I used the the t-shift theorem (using tables) and I got

$$4{e}^{-3s}.{\displaystyle \frac{2}{{s}^{3}}}$$

I have a feeling this isn't correct.

$$4H(t-3)\text{}.{t}^{2}$$

For my answer I used the the t-shift theorem (using tables) and I got

$$4{e}^{-3s}.{\displaystyle \frac{2}{{s}^{3}}}$$

I have a feeling this isn't correct.