rationalizati numitorii apoi comparati numerele x si y
[tex]x = \frac{4}{ \sqrt{2} } si \: y = \sqrt{10} [/tex]
[tex]x = - \frac{12}{ \sqrt{3} } \: si \: y = - \frac{10}{ \sqrt{2} } [/tex]
[tex]x = \frac{7}{ \sqrt{7} } + \sqrt{28} \: \: \: si \: y = \frac{24 \sqrt{3} }{ \sqrt{27} } [/tex]
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