2 7 4 x 1 3 July 8, 2019 16 32 64 128 2 4 7 x 1 3 5 2 4 7 х 3 1 9 2 7 12 x 4 1 3 7 x 2 4 * 7 x 1 347 2 1 7 x 4 3 8 2 x 7 )- 4 3x 1 7 2 x 1 3 4x 6 2 5 x 2 7 x 4 1 3 7 4x 4 )- 2 x 1 )= 30 2 6 7 x 3 1 4 7 2x 4 1 x 2 3 2 1 4 x 3 7 9 6x 7 2 3x 4 )( x 1 )= 6 6x 7 2 3x 4 )( x 1 4 3x 2 )- 7 x 1 )= 3 x 1