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Nguyentranhoangphuong
2 năm trước
Tim x, biết a) (2x - 3)(3x + 2) + (x +4) (4 - 6x) = -20 b) (12x - 5) (4x-1) + (3x-7)(1-16 x ) = 81 Lm giúp mình vs ạ. Cảm ơn nhiều.
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