That is not the right way to compare. Actually: (%i2) domain:complex; (%o2) complex (%i3) is(equal(sqrt(-4*x+4),sqrt(-x+1)*2)); (%o3) unknown
but indeed: sage: var('x', domain='real') x sage: bool(sqrt(-4*x+4)==sqrt(-x+1)*2) False -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.