Velocity Acceleration and Trajectory

Particle's motion is given by

    \vec{a}\left(t\right)=12t^2\hat{x}+\left(18t-8\right)\hat{y}-6t\hat{z}

and
    \vec{r_0}=\left(3,-1,4\right)~,~\vec{v_0}=\left(6,15,-8\right) , \vec{v_0}=\left(6,15,-8\right)


Find \vec{v}\left(t\right)and \vec{r}\left(t\right).