SOLUTION: If f(x) = x³ + 2x find f^(-1)(x)

Algebra.Com
Question 1166899: If f(x) = x³ + 2x find f^(-1)(x)
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
To find the inverse requires the use of Cardano's cubic formula which is
extremely complicated:

, the red curve.
, the green curve.



Edwin
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