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I love class 7a

19/05/2018 at 01:31
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Find x, y :

\(\left|x-\dfrac{7}{5}\right|+\left|y+\dfrac{9}{25}\right|=0\)




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  • ...
    Huy Toàn 8A (TL) 19/05/2018 at 01:40

    Sorry: 

    We have : \(\left|x-\dfrac{7}{5}\right|+\left|y+\dfrac{9}{25}\right|=0\)

    => \(\left|x-\dfrac{7}{5}\right|=0;\left|y+\dfrac{9}{25}\right|=0\)

    => \(x=\dfrac{7}{5};y=\dfrac{-9}{25}\)

    I love class 7a selected this answer.
  • ...
    Huy Toàn 8A (TL) 19/05/2018 at 01:35

    We have:

    \(\left|\dfrac{2}{7}-\dfrac{1}{6}+x\right|>_-0\)

    And : \(-\dfrac{9}{4}-\left|y\right|< 0\)

    => x, y does not exist

  • ...
    I love class 7a 19/05/2018 at 01:44

    Bạn làm sai đề
    Cân nhắc khi làm bài
    Rất may bạn đã sửa được


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