3 14 x 2 21 July 8, 2019 16 32 64 128 3 14 21 2 x 31 3 9 14 x 2 17 21 x 1 9 3 x 14 x 2 x 2x 21 X 1 14 x 2 21 x 3 7 Simplify x 1 14 x 2 21 x 3 7 3 9 14 х 2 17 21 x 1 9 3 14 x 2 3 14x2x2 3 14×2 2-3x 14
