inverse functions

Question

what is the inverse function of F(x)=(x^3)-5

Answer 1

f(x)=(x^3)-5

replace f(x) with "y"

y=(x^3)-5

replace x with "y" and replace y with "x"

x=(y^3)-5

now solve the equation for y

x+5=y^3

y=(x+5)^(1/3)