x＾2-1／x＾2-x=-1
x^2-1=-1*(x^2-x)
(x+1)(x-1)+x(x-1)=0
(x-1)(x+1+x)=0
分母x^2-x=x(x-1)≠0
则x-1≠0
‘所以x+1+x=0
x=-1/2