Question

9x во 2-ой степени +6x=0

Answer 1

$9x^{2}+6x =0\\\\3x(3x+2)=0\\\\\left[\begin{array}{ccc}x_{1}=0 \\3x+2=0\end{array}\right\\\\\left[\begin{array}{ccc}x_{1}=0 \\3x=-2\end{array}\right\\\\\left[\begin{array}{ccc}x_{1}=0 \\x_{2}=-\frac{2}{3}\end{array}\right\\\\Otvet:\boxed{0; \ -\frac{2}{3}}$