最佳答案:(2x^(1/4)+3^(3/2))*(2x^(1/4)-3^3/2)-4x^(-1/2)*(x-x^(1/2))=(2x^(1/4))^2-(3^(3/2))
最佳答案:y=2^(1-2x)=(1/2)^(2x-1)=[(1/2)^2]^(x-1/2)=(1/4)^(x-1/2)所以向右1/2