khanhphan2006 khanhphan2006

24-07-2021
Mathematics

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đưa về phương trình tích: f(x)=3x^2-2x-1

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Respuesta :

name666 name666

24-07-2021

f(x)=3x²+x-3x-1

=x(3x+1)-(3x+1)

=(x-1)(3x+1)

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