ai mà làm giúp mình chi tiết, chính xác nhất câu này mình sẽ vote 5 sao , cho câu trả lời hay nhất làm sai, làm bừa làm thiếu mình sẽ kiện tìm số nguyên n, biết a) - 7 chia hết ( n - 3 ) b) ( n - 1 ) chia hết ( n + 4 )

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