chelesamaire chelesamaire 17-01-2020 Mathematics contestada Find the difference. (7x2 + x + 9) - (3x2 + 4x - 5). A. 4x2 - 3x + 4 B. 4x2 - 3x + 14 OC. 4x² + 5x + 4 D. 4x2 + 5x + 14