AshNicolette12 AshNicolette12 08-05-2017 Mathematics contestada Since A = [tex] 3x^{2} [/tex] - 1 and B = [tex] x^{3} [/tex] - x + 1, compute the opposite of the polynomials: a) A + B b) A - B c) (-A) - BPLEASE ACCOUNT!