Divisores

\[( x - 9 ) ( x - 5 ) = 0\]
\[x=\boxed{9, 5}\]

\[( x + 9 ) ( x + 1 ) = 0\]
\[x=\boxed{-9, -1}\]

\[( x + 7 ) ( x - 5 ) = 0\]
\[x=\boxed{-7, 5}\]