14 1 5 x 7 July 8, 2019 16 32 64 128 7 2x 1 )= 5 x 14 X 14 5 6x 1 7 2 9 4 x 5 14 1 7 1 5 x 7 4 2 5 x 14 4 1 14 x 2 5 x 7 9 14 5 x 1 3 7 14 15 x 5 x 1 7 1 2 x 5 14 7 14 15 divided by 5 x 1 7 Tìm x biết x 1 14 5 7