A.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - \sqrt {13} }}{3};\dfrac{{ - 17 - \sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + \sqrt {13} }}{3};\dfrac{{ - 17 + \sqrt {13} }}{3}} \right)} \right\}\)
B.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - 2\sqrt {13} }}{3};\dfrac{{ - 17 - 2\sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + 2\sqrt {13} }}{3};\dfrac{{ - 17 + 2\sqrt {13} }}{3}} \right)} \right\}\)
C.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - 2\sqrt {13} }}{3};\dfrac{{ - 15 - 2\sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + 2\sqrt {13} }}{3};\dfrac{{ - 15 + 2\sqrt {13} }}{3}} \right)} \right\}\)
D.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - \sqrt {13} }}{3};\dfrac{{ - 15 - \sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + \sqrt {13} }}{3};\dfrac{{ - 15 + \sqrt {13} }}{3}} \right)} \right\}\)
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