Hello please help

(15 pts) 6. Given vectors u1 = (3,7,3, 1), 112 = (1,9, 3, 3), u3 = (1,1,0,1), u4 = (5,5, 3, 1). Find a subset of these vectors that forms a basis for the space spanned by these vectors, and then express each vector that is not in the basis as a linear combination of the basis vectors