( X + 1 )( X + 9 ) = ( X + 3 )( X + 5 ) 4/ ( X + 2 )2 +...

3/ ( x + 1 )( x + 9 ) = ( x + 3 )( x + 5 ) 4/ ( x + 2 )

2

+ 2 ( x – 4 ) = ( x – 4 )( x – 2 )