Y=6x-5
x=-2
y=6*-2-5
y=-17
y=6x-5
y=13
13=6x-5
-6x=-5-13
-6x=-18
x=3
y=6x-5
-11=6*-1-5
-11=-11
График проходит через эту точку
(x-1)(x+1)/[(1-x)(1+x+x²)]-x²/(1+x+x²)=-(x+1)/(1+x+x²)-x²/(1+x+x²)=
=(-x-1-x²)/(1+x+x²)=-(1+x+x²)/(1+x+x²)=-1
X^2+2x+1=4-4x+x^2
6x=3
x=3/6=>x=1/2