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

Angelmedia asked Jul 7, 2022

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Angelmedia asked Jul 7, 2022

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22 votes

f(x)=3x²+x-3x-1

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

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

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