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toi ko hieu fep khai trien nay cac ban gjup t nhe
(a^3-X)-2(a-x)=(3x^2-2)(a-x0
\Leftrightarrow(a-x)(2x^2-ax-a^2)
cam on cac b trc ha
(a^3-X)-2(a-x)=(3x^2-2)(a-x0
\Leftrightarrow(a-x)(2x^2-ax-a^2)
cam on cac b trc ha
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