3 8 x 4 7 )= 1 7 July 8, 2019 16 32 64 128 4 2 3 x 8 4 7 x 1 2 7 8 x 10 )- 4 x 3 )= 9x 7 7x 1 1 /( x 4 8 7 x 3 6 7
