3 x 10 ) 4 3x 8 July 8, 2019 16 32 64 128 3 x 10 )+ 4 3x 8 2 (- x 3 )-( 5x 10 )=- 4 1 3x )+( 8x 7 3 x 3 x 3 x 3 x 3 4 x 10^38 3 x 10/4