Re: factoring

*To*: mathgroup at smc.vnet.net*Subject*: [mg115101] Re: factoring*From*: George Woodrow III <georgevw3 at mac.com>*Date*: Thu, 30 Dec 2010 19:06:23 -0500 (EST)

In[1]:= Factor[x y - x z + y^2 - y z] Out[1]= (x + y) (y - z) You need to put a space between x and y (or a times sign). xy is the variable with the name 'xy', and not x * y. george On Dec 30, 2010, at 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! > >