Echo6ixZer0 Echo6ixZer0 04-07-2020 Mathematics contestada Which polynomial represents the sum below? 3x? +7x+3 5x2 + 12x + O A. 15x2 + 19x+ 3 B. 8x2 + 19x+ 3 C. 8x2 + 84x + 3 O D. 15x2 + 84x + 3