Toán Lớp 8: Rút gọn biểu thức : A = (x^2– 1)(x^2+ x + 1)(x^2– x + 1)
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Toán Lớp 8: Rút gọn biểu thức : A = (x^2– 1)(x^2+ x + 1)(x^2– x + 1)
Comments ( 2 )
$A=(x-1)(x+1)(x^2+x+1)(x^2-x+1)$
$A=(x^3-1)(x^3+1)$
$A=x^6-1$