Răspuns :
[tex] - \sqrt{2x} + 3 = \frac{1}{2} [/tex]
[tex] - \sqrt{2x} = \frac{1}{2} - 3[/tex]
[tex] - \sqrt{2x} = - \frac{5}{2} [/tex]
[tex] \sqrt{2x} = \frac{5}{2} [/tex]
**ridici la patrat
[tex]2x = \frac{25}{4} [/tex]
[tex]x = \frac{25}{8} [/tex]