(2x²-23x+11)/(2x²+x-1)≤(x+1)/(x-1)
2x²+x-1=0
D=1+8=9
x1=(-1-3)/4=-1
x2=(-1+3)/4=1/2
2x²-23x+11=0
D=529-88=441
x1=(23-21)/4=1/2
x2=(23+21)/4=11
2(x-1/2)(x-11)/2(x-1/2)(x+1)≤(x+1)/(x-1)
(x-11)/(x+1)-(x+1)/(x-1)≤0
(x²-12x+11-x²-2x-1)/(x-1)(x+1)≤0
(10-14x)/(x-1)(x+1)≤0
+ _ + _
---------(-1)-------------[5/7]--------------(1)------
x∈(-1;5/7] U (1;∞)