\(2. \left| x \right| - 15 = - 7 \)
A.\(\left[ \begin{array}{l}x = 1\\x = - 1\end{array} \right.\)
B.\(\left[ \begin{array}{l}x = 2\\x = - 2\end{array} \right.\)
C.\(\left[ \begin{array}{l}x = 4\\x = - 4\end{array} \right.\)
D.\(\left[ \begin{array}{l}x = 6\\x = - 6\end{array} \right.\)
A.\(\left[ \begin{array}{l}x = 1\\x = - 1\end{array} \right.\)
B.\(\left[ \begin{array}{l}x = 2\\x = - 2\end{array} \right.\)
C.\(\left[ \begin{array}{l}x = 4\\x = - 4\end{array} \right.\)
D.\(\left[ \begin{array}{l}x = 6\\x = - 6\end{array} \right.\)
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Hóa Học lớp 12
