Related Post: 3 X 5 4 2x 5 3 X 4 2 X 5 2x 5 3 X 5 2x 5 3 X 5 + 4 X 5 = 42 X 3 4 2x 1 5 5 5x 3 )( X 4 )-( 2x 5 )( 3x 4 3x 4x 5 )- 4 (- X 3 )( 2x 5 3 X 5 )+ 5 2x 1 )= 4 3x 2 5 3 X 4 )= 7 3 2x )+ 5 4 2x 5 )- 3 X 5 )= 0