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Lê Huy Quang

03/09/2017 at 16:20
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a:4=>a: ?




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  • ...
    Dao Trong Luan 03/09/2017 at 19:30

    a \(⋮4\)

    => a \(⋮\)divisor of 4

    => a \(⋮\pm1;\pm2;\pm4\)

    So a \(⋮4\Rightarrow a⋮\pm1;\pm2;\pm4\)

  • ...
    Math You Like 03/09/2017 at 16:22

    a : 4=> a : ?

    We have: 4=2 x 2        4=1 x 4

    =>a : 1, 2, -1, -2 


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