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$4.2^{x^2-2x}-2^{m(x^2+6x-1)}=(m-1)x^2+2(3m+1)x-m$

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nbngoc95

nbngoc95

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Tìm m để pt có đúng 2 nghiệm:

$4.2^{x^2-2x}-2^{m(x^2+6x-1)}=(m-1)x^2+2(3m+1)x-m$






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