HELP!!! ALGEBRA 2

Question

Let p(x)= (x+1)³-3. Write an equation for p^-1

Answer 1

x = (p^-1(x) + 1)³ - 3

x + 3 = (p^-1(x) + 1)³

³√(x + 3) = p^-1(x) + 1

³√(x + 3) - 1 = p^-1(x)

Answer 2

to find the inverse switch pan dx and solve for p

x=(p+1)^+3

(x-3)= (p+1)^3

(x-3)^1/3 = p+1

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