解:令t=x+1,则x=t-1,代入f(x+1)=x²-3x+2有:f(t)=(t-1)²-3(t-1)+2=t²-5t+6即函数f(x)的解析式为f(x)=x²-5x+6∴f(1/x)=1/x²-5/x+6(x≠0)