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nguyenhuusang
2 năm trước
lập tất cả các tí lệ thức có thể đươc từ các đẳng thức sau: a, -15.11,9=51.(-35) b, 1,5.4,8=2,3,6 c, 12.20=15.16 d, 2,4.3,2=8.0,96 giiups mk với nhé
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