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Re: [obm-l] simon's favorite factoring trick
- To: obm-l@xxxxxxxxxxxxxx
- Subject: Re: [obm-l] simon's favorite factoring trick
- From: Felipe <fegolac@xxxxxxxxx>
- Date: Tue, 6 Mar 2007 20:33:55 -0300
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On Tue, 6 Mar 2007 16:01:00 -0300
"Jhonata Ramos" <obm.jhon@gmail.com> wrote:
> Pessoal,
>
> tava vendo uns problemas em um fórum de matemática e citaram:
> simon's favorite factoring trick
>
> alguém sabe do que se trata?
> procurei e não achei nada,
ac + ad + bc + bd = (a + b)*(c + d)
Os casos mais usados são aqueles em que b = d = 1 ou b = d = -1.
O nome vem do usuário ComplexZeta do fórum Art of Problem Solving, cujo
nome verdadeiro é Simon.
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