1 2 x 6 ) 1 2 x 10 )- 3 July 8, 2019 16 32 64 128 1 2 x 6 )+ 1 2 x 10 )- 3 1 6 x 2 3 1) - 6 1/2 * x = 6 1 6 x 10^2 1/2 x 6 x 10 1 6 x 10^3