Simplify: (2x−5)(x+4)−(x−2)(x+4)(2x - 5)(x + 4) - (x - 2)(x + 4)(2x−5)(x+4)−(x−2)(x+4).
(x−3)(x+4)(x - 3)(x + 4)(x−3)(x+4)
(x+4)(x+3)(x + 4)(x + 3)(x+4)(x+3)
(x−3)2(x - 3)^2(x−3)2
(x+4)(2x−3)(x + 4)(2x - 3)(x+4)(2x−3)