\[5x² - \sqrt{5}x - 5\sqrt{3} = 0\ \]
\[D = b^{2} - 4ac =\]
\[= 5 - 4 \cdot 5 \cdot \left( - 5\sqrt{3} \right) =\]
\[= 5 + 80\sqrt{3} > 0\]
\[x_{1} \cdot x_{2} = - \sqrt{3} \Longrightarrow корни\ разных\ \]
\[знаков.\]