1 point Let P be the vector space of all polynomials of degree 2 or less and let H be the subspace spanned by 5 5x4 x 2x and x 1 a The dimension of the subspace H is b Is x 5x4 x 2x x 1 a basis for P choose can explain and justify your answer c A basis for the subspace H is polynomial or a comma separated list of polynomials Be sure you Enter a