Tìm x biết a) 2x ( x^2 – 4 )=0 b) 2 ( x+5 ) – x^2 -5x =0

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By Kylie

Tìm x biết
a) 2x ( x^2 – 4 )=0
b) 2 ( x+5 ) – x^2 -5x =0




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