Substitute y for the function notation.

Switch every x to y and every y to x.

Solve for y.

Add 5 to both sides:

Divide both sides by 3.

Take the cube root of both sides:

y = 3x³ − 5

x = 3y³ − 5

$\textit{x} + 5 = 3\textit{y}^{3}$

$\frac{x+5}{3} = \textit{y}^3$

Answer (a):

$\small \sqrt[3]\frac{x+5}{3}$

Follow the same procedure for (a).

Follow the same procedure for (a).