3 6 7x 2 July 8, 2019 16 32 64 128 3 7x )( 6 2x 3 x 6 7x 2 Y 3 7x 6 )- 22 12 3 6 7x 4 2 9 6 7x 2x 3 7x 3 6 4x 2x 6 7x 1 3 )* 21 32 3 7x 2 )= 4x 6 6 2 7x 3 0 3 4 6 * x 4 7x 2 7x 3 6 5x 1 2 7x 3 6 5x 1 2 0 6 3 3x 5 7x 2x 1 3 7x 6 )= 21x 9