F(x)=x+(5/x), how do i find f^-1(x)?

[Champdx]

Homework Statement

f(x)=x+(5/x), how do i find f^-1(x)?

 

[icystrike]

Let me help you to recall what are the steps you have to do.

let f(x) be y , change the y with x , and now express the equation with the subject y . Finally change the y to f^{-1}(x)