walt48451 walt48451 07-02-2024 Mathematics contestada What is the least common denominator of the expression below ?x²+6 / x²+4x-12+7x / x²+7x+6a. x2 + 4x+4b. (x+6)c. (x+6)(x-2)(x+1)d. (x+6)(x-2)(x+6)(x+1)