Toán Lớp 6: `2x.(x-1/7)=0` help me now guys I will vote 5 stars, thanks and best answer

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1. ~ Bạn tham khảo ~

   2x(x-1/7)=0

   \(⇒\left[ \begin{array}{l}2x=0\\x-\dfrac{1}7=0\end{array} \right.\)

   \(⇒\left[ \begin{array}{l}x=0\\x=\dfrac{1}7\end{array} \right.\)

   Vậy x={0;1/7}

2. 2x . (x – 1/7) = 0

   => \(\left[ \begin{array}{l}2x = 0\\x – \dfrac{1}{7} = 0\end{array} \right.\) 

   => \(\left[ \begin{array}{l}x=0\\x=\dfrac{1}{7}\end{array} \right.\) 

   Vậy x ∈ {0 ; 1/7}