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factoring

• To: mathgroup at smc.vnet.net
• Subject: [mg115062] factoring
• From: r_poetic <radford.schantz at mms.gov>
• Date: Thu, 30 Dec 2010 04:09:17 -0500 (EST)

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!