Related Post: 2x 5 2 X 9 2 2x 5 4x 3 2 X 2 9 2x 5 )( X 3 )= 2x 2 9 2x 2 6x 5 )+( 7x 2 X 9 2x 3 X 5 Then 4x 2 9 X 2 5 2 X 2 )+ 2x 4 9 2x 7 )( X 2 9 )( 2x 5 )= 91 2x 7 3 X 9 2 5 2 9 2x 27 X 2 5 9 2x 11 )- 5 3 X 2 )=- 290