id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,work_issues,upstream,reviewer,author,merged,dependencies,stopgaps
3372,"expand on (x+y)^n fails for non-commutative (x,y) [new symbolics]",cwitty,gfurnish,"{{{
sage: var('x,y', MatrixSpace(QQ, 5, 5))
(x, y)
sage: ((x+y)^3).expand()
x^3 + x*y*x + y*x*x + x*y^2 + y*x^2 + x*y*y + y*x*y + y^3
}}}

This is the wrong answer (it has two terms {{{x*y*y}}} and {{{x*y^2}}}, when only one should exist; and it does not have an {{{x^2*y}}}); also, this answer is printed poorly ({{{x*y*y + ... + x*y^2}}} should simplify to {{{2*x*y^2 + ...}}}).",defect,closed,major,,symbolics,fixed,,,,,,,,,