finding inverses of functions

*To*: mathgroup at smc.vnet.net*Subject*: [mg126418] finding inverses of functions*From*: John Accardi <accardi at accardi.com>*Date*: Wed, 9 May 2012 03:50:21 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Hello, I am trying to get Mathematica to find the inverse of: y = 3x^3 + 2e^(2x) (which I know is invertible) InverseFunction only seems to give inverses of built-ins, like Sine. I tried: Solve[ y == 3x^3 + 2e^(2x), x ] but get a message that Solve does not have methods suitable. (Solve works for simpler functions, however.) Any ideas? Thanks.

**Follow-Ups**:**Re: finding inverses of functions***From:*Andrzej Kozlowski <akozlowski@gmail.com>

**Re: finding inverses of functions***From:*DrMajorBob <btreat1@austin.rr.com>

**Re: finding inverses of functions***From:*Bob Hanlon <hanlonr357@gmail.com>