Giúp eim:))))))))))))))

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Giúp eim:))))))))))))))
giup-eim

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Hưng Gia 4 years 2020-11-05T20:04:11+00:00 2 Answers 53 views 0

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  1. Doris
    0
    2020-11-05T20:05:15+00:00
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    Đáp án:

     

    Giải thích các bước giải:

     

    giup-eim

  2. Dulcie
    0
    2020-11-05T20:05:48+00:00
    Reply

    $\dfrac{x}{-15}=\dfrac{60}{-x}$

    $↔\dfrac{x}{-15}=\dfrac{-60}{x}$

    $↔x^2=-15.(-60)=900$

    $↔\begin{cases}x=30\\x=-30\end{cases}$

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