Tìm số thực \(x \) , biết:
a. \(2{x^3} - 2{x^2} + 2017x - 2017 = 0 \)
b. \(2{x^2} + 4x = 0 \)
A.\(\begin{array}{l}a)\,\,x = 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = 2\end{array} \right.\end{array}\)
B.\(\begin{array}{l}a)\,\,x = 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = - 2\end{array} \right.\end{array}\)
C.\(\begin{array}{l}a)\,\,x = - 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = - 2\end{array} \right.\end{array}\)
D.\(\begin{array}{l}a)\,\,x = - 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = 2\end{array} \right.\end{array}\)
a. \(2{x^3} - 2{x^2} + 2017x - 2017 = 0 \)
b. \(2{x^2} + 4x = 0 \)
A.\(\begin{array}{l}a)\,\,x = 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = 2\end{array} \right.\end{array}\)
B.\(\begin{array}{l}a)\,\,x = 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = - 2\end{array} \right.\end{array}\)
C.\(\begin{array}{l}a)\,\,x = - 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = - 2\end{array} \right.\end{array}\)
D.\(\begin{array}{l}a)\,\,x = - 1\\b)\,\,\left[ \begin{array}{l}x = 0\\x = 2\end{array} \right.\end{array}\)
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