Let p =-1+x-2x, p2 = 4+4x+8x, p3 = 7. 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 v37 instead of v3 = 1. V = V2 V2