Let P1 = -1+x-2x2, P2 = 4+4x+8x, P3 = 9. Find a basis for the subspace of

Let P1 = -1+x-2x2, P2 = 4+4x+8x², P3 = 9. Find a basis for the subspace of P₂ spanned by the given vectors. If less than 3 vectors are required one or more of the vectors below can be set to zero. Use the above vectors if possible. I.e. use v3 = 9 instead of v3 = 1.

V1 =

V2=

V3 =