Răspuns:
[tex](x - \sqrt{2} ) {}^{2} = \frac{8}{9 } \\ x - \sqrt{2} = \sqrt{ \frac{8}{9} } \\ x - 2 = - \frac{2 \sqrt{2} }{3} \\ x1 = \frac{ \sqrt{2} }{3} \\ x2 = \frac{5 \sqrt{2} }{3} \\ [/tex]
Deci are două soluti:
[tex] x1 = \frac{ \sqrt{2} }{3} [/tex]
[tex]x2 = \frac{5 \sqrt{2} }{3} [/tex]
