jaeybird9 jaeybird9 07-02-2017 Mathematics contestada Which is NOT a polynomial? Question 2 options: 4x4+3x3− 2x2−1 x5 − 5x4 + 4x3 −3x2 3x2 + 5x4 + 2x − 12 x3− 7x2 + 9x −20