Related Post: 3x X 4x 5 3x X 4 )( X 5 3 X 4 X 5 3 X 4 )( X 5 0 3 X 4 )- X 5 2x 3 X 4 X 5 2 3 X 4 X 50 3 X 4 X 5 7 3 X 5 )=- 4x 8 X 3 4 X 5 4 16