Rezolva ecuatia:
(3x+2)la a doua=4



Răspuns :

[tex](3x+2)^{2} = 4 => 9x^{2} + 4 + 12x = 4 => 9x^{2} + 12x = 0[/tex]
[tex]x(9x+12) = 0[/tex]
[tex]x_1 = 0[/tex] sau [tex]x_2 = -\frac{12}{9} = -\frac{3}{4}[/tex]