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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: X(X-1)=0 tìm X nhanh cho mình nhe,mình cảm ơn

Toán Lớp 6: X(X-1)=0
tìm X nhanh cho mình nhe,mình cảm ơn

Comments ( 2 )

  1. x( x – 1 ) = 0 
    $\Rightarrow$ $\left[\begin{matrix} x = 0\\ x-1=0\end{matrix}\right.$                             $\Rightarrow$ $\left[\begin{matrix} x = 0\\ x=1\end{matrix}\right.$
                                 $\text{ Vậy x ∈ { 0 ; 1 } }$
     

  2. x ( x – 1 ) = 0
    ⇔ $\left[\begin{matrix} x=0\\ x-1=0\end{matrix}\right.$
    ⇔ $\left[\begin{matrix} x=0\\ x=0+1\end{matrix}\right.$
    ⇔ $\left[\begin{matrix} x=0\\ x=1\end{matrix}\right.$
    Vậy x = 0 hoặc x = 1

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222-9+11+12:2*14+14 = ? ( )

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