Ihatemath665 Ihatemath665 12-11-2020 Mathematics contestada What is the sum of the rational expression below? 3x/x+2 + x/x+4 A. 4x^2 +14x/x^2 + 6x + 8 B. 4x/2x + 6 C. 3x^2/x^2 + 8 D. 4x^2 + 4x +8/x^2 + 6x +8