2 7 x 2 10 July 8, 2019 16 32 64 128 7 2 x )- 2 (- 10 )= 15 - 2 7 x = 10 8 X 2 7 2 x 10 4 2 7 x 100 2 7 x 1000 2 7 x 10 5 2 7 x 10 3 108 x - 7 = 2 7 x 2 10x 2 7 x 10 1 2 7 x 100 1 2 7x 2 )= 10 2 x 2 7x 10 X 2 7x 2 100 X 2 7x 2 10x