模仿x+2/x=c+2/c的解是x1=c,x2=2/c
x+2/x-1=a+2/a-1
x-1 +2/(x-1)=a-1 +2/(a-1)
∴x1-1=a-1,x2-1=2/(a-1)
∴x1=a,x2=(a-1+2)/(a-1)=(a+1)/(a-1)
模仿x+2/x=c+2/c的解是x1=c,x2=2/c
x+2/x-1=a+2/a-1
x-1 +2/(x-1)=a-1 +2/(a-1)
∴x1-1=a-1,x2-1=2/(a-1)
∴x1=a,x2=(a-1+2)/(a-1)=(a+1)/(a-1)