0.5+(-2x^(1-2x)(x+xlog(x)-1)(x-1)+(-x)(-2(1-x)^(1-2(1-x))((1-x)+(1-x)log((1-x))-1)))/(-2x^(1-2x)(x+xlog(x)-1)+(-2(1-x)^(1-2(1-x))((1-x)+(1-x)log((1-x))-1)))=0