Related Post: 5 X 2 4 X 1 X 5 2 4x 1 0 5 X 4 X 2 19 4 2x 5 )( X 2 4x 1 X 5 4x 2 13 5 X 2 4 X 1 10 5 2 X )+ 3x 4x 15 5 (- 2 5x ) - 4 X 1 5 X 2 )+ 14 4 X 3 5 X 2 )+ 18 4 X 4