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A \(S = \left\{ {0;2;\dfrac{{ - 3}}{2}} \right\}\)

B \(S = \left\{ {0;2;\dfrac{{ 3}}{2}} \right\}\)

C \(S = \left\{ {0;\pm 2;\dfrac{{ - 3}}{2}} \right\}\)

D \(S = \left\{ {0;2;\pm \dfrac{{ 3}}{2}} \right\}\)

A \(x =  \pm \dfrac{1}{2}\)

B \(x =  - \dfrac{1}{2}\)

C \(x =   \dfrac{1}{2}\)

D Phương trình vô nghiệm.

A \(S = \left\{ { - \dfrac{1}{2};-\dfrac{3}{2}} \right\}\)

B \(S = \left\{ { \dfrac{1}{2};\dfrac{3}{2}} \right\}\)

C \(S = \left\{ {  \dfrac{1}{2};-\dfrac{3}{2}} \right\}\)

D \(S = \left\{ { - \dfrac{1}{2};\dfrac{3}{2}} \right\}\)

A \(x=1\)

B \(x=-1\)

C \(x=\pm 1\)

D Phương trình vô nghiệm

A \(S = \left\{ {  \sqrt 2 ; - 2} \right\}\)

B \(S = \left\{ { \pm \sqrt 2 ; - 2} \right\}\)

C \(S = \left\{ { - \sqrt 2 ; - 2} \right\}\)

D \(S = \left\{ { \pm \sqrt 2 ; 2} \right\}\)

A \(x=1\)

B Phương trình vô nghiệm

C \(x=-1\)

D \(x=\pm 1\)

A \(\left[ \begin{array}{l}
x < 1\\
x = 2
\end{array} \right.\)

B \(\left[ \begin{array}{l}
x = 1\\
x < 2
\end{array} \right.\)

C \(x \ge 2\)

D \(\left[ \begin{array}{l}
x = 1\\
x \ge 2
\end{array} \right.\)

A \(S = \left\{ {3;4} \right\}\)

B \(S = \left\{ {-3;4} \right\}\)

C \(S = \left\{ {-3;-4} \right\}\)

D \(S = \left\{ {3;-4} \right\}\)

A \(a =  4\) hoặc \(a =  - 8\)

B \(a =  - 4\) hoặc \(a =  - 8\)

C \(a =   4\) hoặc \(a =   8\)

D \(a =  - 4\) hoặc \(a =  8\)

A \(S = \left( {\left\{ { - 1; - 1} \right\};\left( { - 1;0} \right)} \right)\)

B \(S = \left( {\left\{ { 1; 1} \right\};\left( { - 1;0} \right)} \right)\)

C \(S = \left( {\left\{ { - 1; - 1} \right\};\left( { 1;0} \right)} \right)\)

D \(S = \left( {\left\{ { 1; 1} \right\};\left( {  1;0} \right)} \right)\)

A \(S = \left\{ {0; - 2;1 -\sqrt 5 } \right\}\)

B \(S = \left\{ {0; - 2;1  \sqrt 5 } \right\}\)

C \(S = \left\{ {0; 2;1 \pm \sqrt 5 } \right\}\)

D \(S = \left\{ {0; - 2;1 \pm \sqrt 5 } \right\}\)

A \(S = \left\{ { - \dfrac{1}{4};-1} \right\}\)

B \(S = \left\{ { - \dfrac{1}{4};1} \right\}\)

C \(S = \left\{ {  \dfrac{1}{4};-1} \right\}\)

D \(S = \left\{ { \dfrac{1}{4};1} \right\}\)

A \(m=13\) hoặc \(m=22\)

B \(-13 \le m \le- 22\)

C \(13 \le m \le 22\)

D \(13 < m < 22\)