Toán Lớp 7: Tìm x ∈ Q, biết rằng;
2x. (x – 1/7) = 0
Giúp mk, 22h là mk phải nộp rùi
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Toán Lớp 7: Tìm x ∈ Q, biết rằng;
2x. (x – 1/7) = 0
Giúp mk, 22h là mk phải nộp rùi
Comments ( 2 )
<=>\(\left[ \begin{array}{l}2x=0\\x-\dfrac{1}{7}=0\end{array} \right.\)
<=>\(\left[ \begin{array}{l}x=0(N)\\x=\dfrac{1}{7}(N)\end{array} \right.\)