12 4 6 x 4 July 8, 2019 16 32 64 128 48 12 6 х 4 12 4 6 2 x 4 4 12 x 6 42 9 3 x 4 12 6 x 4 3 12 43 6x 4 12 1 4 x 6 3 4 4 5 x 12 4 6 2 4 1 5x )+ 6 2 12 x )+ 4x (- 12 x 6 4 4 5 12 4x 6 )=( 6x 4 12 4x 6 )=( 6x 4 responses 12 4x 6 )= 4 x 4 4 x 12 x 6 4 2 9 12 3 x 6 4 432 12 4 x 11 42 6