http://wims.unice.fr/wims/wims.cgi?module=tool/algebra/factor.en
gives
x^5+9*x+1 = x^{5}+9x+1
is an irreducible polynomial over <IMG alt=ZZ src="http://wims.unice.fr/wims/mathfonts/109/ZZ.gif" border=0>.
I hope the symbols above come out ok in the comment box.

Posted by Charlie
on 20070313 08:31:49 