(440/x-1)-(440/x)=4
(110/x-1)-(110/x)=1 两边乘x(x-1)
110x-110(x-1)=x(x-1)
x²-x-110=0
(x-11)(x+10)=0
x1=11 x2=-10
如果本题有什么不明白可以追问,
(440/x-1)-(440/x)=4
(110/x-1)-(110/x)=1 两边乘x(x-1)
110x-110(x-1)=x(x-1)
x²-x-110=0
(x-11)(x+10)=0
x1=11 x2=-10
如果本题有什么不明白可以追问,