x^2-6x+8 / x^2 - 3x-4
x^2-6x+8= (x-4)*(x-2)
x^2 - 3x-4 = (x-4)*(x+1)
x^2-6x+8 / x^2 - 3x-4 = (x-4)*(x-2) / (x-4)*(x+1) = x-2/ x+1
ответ: (x-2)/ (x+1)
x^2-6x+8 / x^2 - 3x-4
x^2-6x+8= (x-4)*(x-2)
x^2 - 3x-4 = (x-4)*(x+1)
x^2-6x+8 / x^2 - 3x-4 = (x-4)*(x-2) / (x-4)*(x+1) = x-2/ x+1
ответ: (x-2)/ (x+1)