Răspuns:
1.)
[tex] \sqrt{2x - 7} = 7 \\ [/tex]
[tex]2x - 7 = 49[/tex]
[tex]2x = 49 + 7[/tex]
[tex]2x = 56[/tex]
[tex]x = 28[/tex]
2.)
[tex] \sqrt{3x + 2} = 2[/tex]
[tex]3x + 2 = 4[/tex]
[tex]3x = 4 - 2[/tex]
[tex]3x = 2[/tex]
[tex]x = \frac{2}{3} [/tex]