\[x² + 10x - 24 = 0\]
\[x_{1} + x_{2} = - 10;\ x_{1} \cdot x_{2} = - 24\]
\[x_{1} = 2;\ \ x_{2} = - 12\]
\[x^{2} + 10x - 24 = (x - 2)(x + 12).\]