5 3 x 7 )= 2 5x 1 July 8, 2019 16 32 64 128 X 2 3 3x 5 6 =- 5x 7 18 5x 3 x 11 )= 7 2x 5 )+ 2 5 x 3 )( x 7 )-( 5x 1 )( x 2 )= 8 5 x 3 )( x 7 )-( 5x 1 )( x 2 )= 25 5x 7 2 2x 5 ) 2 3 x 1