Решите неравенство ((x^2-12x+10)/(x-1))+((x^2-15x+5)/( x-5))=< 2x-11

(x^2-12x+10)/(x-1)  +  (x^2-15x+5)/(x-5) ≤ 2x-11 < =>   < => [(x^2-12x+10)(x-5)  +  (x^2-15x+5)(x-1)  -  (2x-11)(x-1)(x-5)]  /  [(x-1)(x-5)] ≤ 0 (x^2-12x+10)(x-5)  -  (2x-11)(x-1)(x-5) = = (x^2-12x+10-2x^2+13x-11)(x-5) = = (-x^2+x-1)(x-5) = = -x^3+x^2-x+5x^2-5x+5 = = -x^3+6x^2-6x+5 (x^2-15x+5)(x-1) = = x^3-15x^2+5x-x^2+15x-5 = = x^3-16x^2+20x-5 -x^3+6x^2-6x+5+x^3-16x^2+20x-5 = = -10x^2+14x -2x(5x-7)  /  [(x-1)(x-5)] ≤ 0 < => < => 2x(5x-7)  /  [(x-1)(x-5)] ≥ 0 x≠1;   x≠5 _+)_+_[1.)_+_ ответ: (-∞; 0]  ∨  (1; 1.4]  ∨  (5; +∞)