\[x^{2} + 5x - 36x + 30 = 0\]
\[x^{2} - 31x + 30 = 0\]
\[x_{1} + x_{2} = 31;\ \ \ x_{1} \cdot x_{2} = 30\]
\[x_{1} = 1;\ \ \ x_{2} = 30.\]