A particle moves with a velocity of v(t)= m/s along an s-axis. Find the displacement and the distance traveled by the particle in a given time interval.

11) v(t) = t^3 - 3t^2 +2t 0 < t <3

I did sigma(t^3-3t^2 + 2t)dt

I got 1/4t^4 + 3/3t^3 + 2/2 t^2 and evaluated on 0-3

(81/4 - 108/4 + 36/4)

The answer is supposed to be 9/4 m.... Where did I go wrong ??? I've redone this problem like 6 times