sorrydonothaveo sorrydonothaveo 09-03-2018 Mathematics contestada Choose the correct simplification of (4x^3 - 3x- 7) + (3x^3 + 5x + 3) A. 7x^3 - 2x - 4 B. X^3 - 8x - 10 C. 7x^3 + 2x -4 D. X^3 + 8x + 10