SOLUTION: What is the inverse of: f(x)=3x^3+8

Question 1087242: What is the inverse of: f(x)=3x^3+8
Found 2 solutions by MathLover1, rothauserc:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

the inverse of:
......since we have
.....swap and
....sole for

Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
f(x) = 3x^3 +8
:
y = 3x^3 +8
:
x = 3y^3 +8
:
3y^3 = x -8
:
y^3 = (x -8) / 3
:
********************************
f^(-1) (x) = ((x -8) / 3)^(1/3)
********************************
:

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