(5x-10)/(x+8)(x-7)>0
Решение (5x - 10)(x + 8)(x - 7) > 0 5x - 10 = 0 x₁ = 2 x + 8 = 0 x₂ = - 8 x - 7 = 0 x₃ = 7 - + - + --------------------------------------------------------------------------------------------> - 8 2 7 x x∈(-8;2) (7;+∞)