1 3 4 x 6 7 July 8, 2019 16 32 64 128 1 3 4 x 2 6 7 1 2 3 x 4 5 6 7 8 6 3 4 x 1 7 9 1 /( x 4 8 7 x 3 6 7 1 2 3 4 x 6 7 8 9 Given 2 1 3 4 x 7 6 10 1 3 x 1 4 6 x 7 X 3 4 15 x 1 6 7x 10 4 7x 1 3 2x 1 4 x 6 9 1 x 6 3 )/( 4 2 x 7 6