Short multiplication formula help

Short multiplication formula help

Postby dancho » Mon Jul 24, 2006 11:39 am

Is there any short multiplication formula for:
a^2 + b^2 = ?
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Postby SAPOSTO_S_R » Wed Sep 27, 2006 11:39 am

no there isn`t

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I am not so shure

Postby yppetrov » Sat Dec 16, 2006 3:00 am

I think that there is such a formula, but I can not remember it

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Re: Short multiplication formula help

Postby David » Wed Oct 03, 2007 9:19 am

dancho wrote:Is there any short multiplication formula for:
a^2 + b^2 = ?


Perhaps you are thinking of the difference of squares ...

a^2 - b^2 = (a+b)(a - b)

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Postby martosss » Fri Jun 06, 2008 5:50 am

does [tex](a+)^2-2ab[/tex] count? :roll: Although it isn't exactly a formula...

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answering the question

Postby parvez » Sat May 30, 2009 11:43 pm

:roll:
a^2+b^2=(a+b)^2 - 2ab
:shock:
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