Đề thi chính thức vào 10 môn Toán Trường Phổ Thông...

A $\begin{array}{l} a)\,\,S = \left\{ {4;\frac{1}{2};0} \right\}\\ b)\,\,\left( {1;2} \right);\,\,\left( {2;1} \right) \end{array}$

B $\begin{array}{l} a)\,\,S = \left\{ {4;\frac{1}{2};0} \right\}\\ b)\,\,\left( {1;2} \right) \end{array}$

C $\begin{array}{l} a)\,\,S = \left\{ {4;0} \right\}\\ b)\,\,\left( {1;2} \right);\,\,\left( {2;1} \right) \end{array}$

D $\begin{array}{l} a)\,\,S = \left\{ {4;\frac{1}{2}} \right\}\\ b)\,\,\left( {1;2} \right) \end{array}$

A $\begin{array}{l} a)\,\,\left\{ \begin{array}{l} m > - \frac{1}{2}\\ m \ne 0 \end{array} \right.\\ b)\,\,m = 4 \end{array}$

B $\begin{array}{l} a)\,\,m > - \frac{1}{2}\\ b)\,\,m = 4 \end{array}$

C $a)\,\,\left\{ \begin{array}{l} m > - \frac{1}{2}\\ m \ne 0 \end{array} \right.$

b) Không có giá trị của m thỏa mãn.

D $\begin{array}{l} a)\,\,\left\{ \begin{array}{l} m > - \frac{1}{2}\\ m \ne 0 \end{array} \right.\\ b)\,\,m = \pm 4 \end{array}$

A Vô nghiệm

B $a)\,\,\left( {0; - 2} \right)$

C $a)\,\,\left( {1;0} \right)$

D $a)\,\,\left( {1;0} \right);\,\,\left( {0; - 2} \right)$