[tex] \frac{1}{9} x {}^{2} = 16[/tex]
[tex] \frac{1}{9} x {}^{2} - 16 = 0[/tex]
(scoatem radical din fiecare factor)
[tex]{ \frac{1}{9}x } - 4 = 0[/tex]
[tex]( \frac{1}{9}x + 4)( \frac{1}{9}x - 4) = 0[/tex]
[tex] \frac{1}{9}x + 4 = 0[/tex]
[tex] \frac{1}{9} x = - 4[/tex]
[tex]x = - 4 \div \frac{1}{9} = - 4 \times 9 = - 36[/tex]
[tex] \frac{1}{9}x - 4 = 0[/tex]
[tex] \frac{1}{9}x = 4[/tex]
[tex]x = 4 \div \frac{1}{9} = 4 \times 9 = 36[/tex]
[tex]solutiile \: sunt \: = (36 \: si \: - 36)[/tex]
[tex]sper \: ca \: te -am \: ajutat[/tex]
