Re: factoring

*To*: mathgroup at smc.vnet.net*Subject*: [mg115103] Re: factoring*From*: Helen Read <readhpr at gmail.com>*Date*: Thu, 30 Dec 2010 19:06:45 -0500 (EST)*References*: <ifhi7m$i0t$1@smc.vnet.net>

On 12/30/2010 4:09 AM, r_poetic wrote: > Hello, > an easy question: > > why does Factor[xy-xz+y^2-yz] fail to return (x+y)(y-z), and what > command would do that? > > Thanks! You're right that it's an easy question. You need to put a space between x y. otherwise, "xy" is a single symbol. Likewise for xz and yz. Factor[x y - x z + y^2 - y z] -- Helen Read University of Vermont