7 12 x 2 5 July 8, 2019 16 32 64 128 5 6 7 12 x 7 2 7 12 x 5 18 2 4 9 12 7 x 2 3 7 5 4 7 12 x 2 2 5 7 12 5 2 x 2 9 7 12 5 2 x 1 6 7 4 4 3 x 12 5 2 2 5 7 12 x 31 50 7 x 2 )= 10 5x 12 12 3 8 x 2 5 7 Tìm x 12 7 x 2 3 7 5 X 2 4x 12 5 7 10x 12 2 x 7 2 4 1 ) = 58
