How to solve this problem and show steps of solving?????

u = Initial velocity = 0 m/s
v = final velocity  = ? m/s
a = acceleration = 3 m/s²
t = time = 8 s

S = ut + 1/2 x 3 x t²
S = 0 + 1/2 x 3 x 64
S = 32 x 3
S = 96 m