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Tuyettuyet
2 năm trước
BT1:tìm x C1: 8 chia hết cho x và x>0 C2:-8 chia hết cho x và 12 chia hết cho x C3: 12 chia hết cho x và x<0 C4: -27chia hết cho x và 36 chia hết cho x C5: x chia hết cho -9;x chia hết cho 12 và 20<x<50 C6: x chia hết cho 4;x chia hết cho -6 và -20<x<-10 C7:x-4 là bội của x-1 C8: x+5 là bội của x -3 C9: 2x-1 là ước của 3x+2 C10: 3x-2 là ước của 5x+3 C11:( x mũ 2) +2 là bội của x+2 C12:( x mũ 2) -7 là bội của x+3 Làm nhanh giúp mình với ạ! Ai làm nhanh nhất đầy đủ đúng hết mình cho 5 sao
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