F(x)= to solve for the inverse of a function you do 4 steps: 1. subsitute f(x) with y 2. switch y and x places 3. solve for y 4. subsitute y with f⁻¹(x)
so we have f(x)= subsitute f(x) with y y= switch x and y x= solve for y
x= cube both sides =y+2 subtract 2 from both sides =y