2 7 x 2 8 July 8, 2019 16 32 64 128 2 x 7 2 =(- 8 3 7 x 2 )- 8 4 3x )= 47 7 2 1 44 x 2 88 2 7 x 8 9 - 2 7 x = 10 8 2 7 x 80 2/7 x + 84 (- 3x 2 3x 7 )-( x 2 8x X 7 2 x 8 2 15 8x 2 7 x 2 2 7 x 8 5 4 2 7 x 2 7 8 2 7 x 8 6 2 7 x 8 1 2 7 x 840
