Related Post: 7 2x 1 )= 2 5x 4 1 2x 7 2 =- 3 8 5x 4 X 7 )( 3x 2 )-( 5x 1 )( 2x 4 X 7 )( 3 2x )+( 5x 2 )( 4x 1 4 5x 2 )- 7 1 2x )+ 5 8 X 5-4(2x-7) -39 2x+7 =5