Find the inverse of f(x)=x^3 +3

To find the inverse of a function, we need to switch the roles of x and y and then solve for y. Let's start by changing f(x) to y:

y = x^3 + 3

Next, switch the roles of x and y:

x = y^3 + 3

Now, solve for y:

x - 3 = y^3
y = (x - 3)^(1/3)

Therefore, the inverse function of f(x) = x^3 + 3 is:

f^(-1)(x) = (x - 3)^(1/3)