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>