elvachilel elvachilel 03-05-2021 Mathematics contestada What is the sum? 3x X - 4 X-3 + 2x 7x2 + 7 x + 12 2X(X - 4) 6x4 - 7x + 12 2 x(x - 4) 7x2 - 7x + 12 2 x(x - 4) 6x4 + 7 x + 12 2X(X - 4)