Hello,I would really appreciate guidance with this .THanks.

Do I find ∫∫F.nds for each face? or ?...

Given that F=(x-y²)i+yzj+x²zk

calculate the flux of F out of the cube with vertices at (0,0,0),(1,0,0),(1,1,0),(0,1,0),(0,1,1),(1,1,1),(1 ,0,1) and (0,0,1).