\[\frac{(x - 5)(x + 6)}{x - a} = 0,\ \ x \neq a\]
\[(x - 5)(x + 6) = 0\]
\[x = 5,\ \ x = - 6.\ \]
\[Ответ:a = 5 \Longrightarrow x = - 6,\]
\(a = - 6 \Longrightarrow x = 5,\)
\[\ \ \ \ \ \ \ \ \ \ \ \ \ \ a \neq x;a \neq 5;\]
\[a \neq \ - 6 \Longrightarrow x = 5;\ - 6.\]