4 x 1 7 2x July 8, 2019 16 32 64 128 4 x 1 )= 15x 7 2x 5 X 4 x 1 ) 7 2x 3 2 x 4 )- 1 2x 7 4x 1 7 2x 3 4x 1 7 * 2x 2 0 4 3x 1 )+ 7 x 2x 3 9x 2x 1 4 x 1 2 7 2x 3 5 4 x 1 )= 7 2x 9 4x 7 3x 1 )( x 4 )( 2x 7 4 x 1 )+ 7 5 2x 3 4 x 1 )= 6x 7 2x 3 4x 4 7 1 2x 2x 5 4 x 1 7