X 4 32 8 6 July 8, 2019 16 32 64 128 X 4 32 8 67 32 129 x 8 4 64 Tìm x 4 32 8 67 X cộng 4 32 8 67 37 6 x 4 32 8 32 8 4 x 6 2 4 x 8 )- 2x 6x 32 4x 4 x − 8 6x 10x − 32 X 4 32 8 67 x 3 64 5 86 X 4 x 4 x 4 4 x = 32