数学神马的找揍2(x^2 + 1/x^2)-(x + 1/x) =0x2-(1+√33)x/4+1=0
问题描述：
数学神马的找揍
2(x^2 + 1/x^2)-(x + 1/x) =0
x2-(1+√33)x/4+1=0
答
a=x+1/xa²=x²+2+1/x²x²+1/x²=a²-2则2(a²-2)-a=62a²-a-10=0(2a-5)(a+2)=0a=5/2,a=-2x+1/x=5/22x²-5x+2=(2x-1))(x-2)=0x=1/2,x=2x+1/x=-2x²+2x+1=(x+1)²=0x=-...