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Re: Factor by Grouping

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96635] Re: [mg96613] Factor by Grouping
  • From: DrMajorBob <btreat1 at austin.rr.com>
  • Date: Wed, 18 Feb 2009 04:21:49 -0500 (EST)
  • References: <200902171126.GAA26096@smc.vnet.net>
  • Reply-to: drmajorbob at longhorns.com

Your polynomial won't factor, since xy is a third variable... not x*y.  
Correcting that, however:

4 + 7 x y - 14 y - 2 x // Factor

(-2 + x) (-2 + 7 y)

Bobby

On Tue, 17 Feb 2009 05:26:20 -0600, magnum <magnum at nobody.com> wrote:

> I am new to Mathmatica. I am trying to learn how to factor monomials and  
> polynomials and at the same time learn Mathematica. How to I factoa  
> equation such as
>
> 4+7xy-14y-2x
>
> I need to group to (x-2)(7y-2).
>
> Should be easy I think, but I can't actually figure out what the correct  
> sequence would be.
>
>
>
>
>



-- 
DrMajorBob at longhorns.com


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