LudovicoVan
Posts:
2,971
From:
London
Registered:
2/8/08
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Re: Factoring
Posted:
Jan 8, 2012 8:36 PM
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"John Smith" <invalid@invalid.invalid> wrote in message
news:jedg18$6c8$1@speranza.aioe.org...
> A student asked me how to factor x^3-3x^2-4x+12
AFAIK, some guesswork is in order, but it has to do with gruping factors:
x^3-3x^2-4x+12 = x^2(x-3)-4(x-3)
-LV
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