miathach87 miathach87 20-02-2021 Mathematics contestada What is the difference? x/x^2 - 3/x-4 a. 2(x+6)/(x+4)(x-4) b. -2(x+6)/(x+4)(x-4) c. x-3/(x+5)(x-4) d. -2(x-6)/(x+4)(x-4)