Finding the Inverse of a Function - Attempting to Solve

[nod32]

Homework Statement

Find the inverse

The Attempt at a Solution

Swapping x and y led me to nowhere. I'm really not sure where to go with this one, and a search online only led to simple problems where the previously mentioned method works.

 

[benorin]

Perform long division and then try swapping x and y again.

 

[arkajad]

I guess "inverse" means "inverse function". If y=f(x) then x=f^{-1}(y). f^{-1} is the inverse function. Can you express x in terms of y? You will have to solve some equation ...
If you plot your function with x horizontal and y vertical, and then rotate your plot by 90 degrees so that y is horizontal - you will see the plot of f^{-1}. Now, calculate...