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unable to FullSimplify

• To: mathgroup at smc.vnet.net
• Subject: [mg65703] unable to FullSimplify
• From: vladimir347 at yahoo.com
• Date: Sun, 16 Apr 2006 01:45:11 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

I get the following unexpected and inconsistent results:

FullSimplify[Expand[b + (a + b)^4]]

b + (a + b)^4


FullSimplify[Expand[a + (a + b)^4]]

a + a^4 + 4*a^3*b + 6*a^2*b^2 + 4*a*b^3 + b^4

Why they are different and why there is no simplification in the second
case?

--
Vladimir

• Follow-Ups:
  • Re: unable to FullSimplify
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>