Algebra

No.11717945 ViewReplyOriginalReport
We are dealing with a math problem. We can't solve it:

Decide, if these sets are U and V are vector subspace of vector space P3 = {a2x2 + a1x + a0 : a2, a1, a0 ? R})

where

U = {a2x^2 + a1x + a0 ? P3 : a2 = 2k + 1 ? a1 = 2l + 1 ? a0 = 0, k, l ? Z},
V = {a2x^2 + a1x + a0 ? P3 : a1 + 2a1 + 2a0 = 0}.