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question 1

• To: mathgroup at smc.vnet.net
• Subject: [mg75810] question 1
• From: dimitris <dimmechan at yahoo.com>
• Date: Fri, 11 May 2007 05:24:19 -0400 (EDT)

I have

In[5]:=
f = (o - 8)^4 - (e + 4)^8

Out[5]=
-(4 + e)^8 + (-8 + o)^4

In[6]:=
ff = Expand[f]

Out[6]=
-61440 - 131072*e - 114688*e^2 - 57344*e^3 - 17920*e^4 - 3584*e^5 -
448*e^6 - 32*e^7 - e^8 - 2048*o + 384*o^2 - 32*o^3 + o^4

Is it possible to simplify ff to f again?

Thanks!

• Follow-Ups:
  • Re: question 1 (Integrate and simplification)
    • From: dimitris <dimmechan@yahoo.com>
  • Re: question 1
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>