\[По\ теореме\ Виета:\]
\[x_{1} + x_{2} = - b;\ \ \ \ \]
\[x_{1} \cdot x_{2} = c.\]
\[x_{1} = 0,2;\ x_{2} = - 6:\]
\[x_{1} + x_{2} = - 5,8;\]
\[x_{1} \cdot x_{2} = - 1,2.\]
\[x^{2} + 5,8x - 1,2 = 0\ \ \ \ \ \ \ \ | \cdot 5\]
\[\Longrightarrow 5x^{2} + 29x - 6 = 0.\]