1 a 2 2b 2 3 July 8, 2019 16 32 64 128 1 2 a 2b )+ 3 2 b 2a Simplify 1 2 a 2b 3 2 b 2a Cho abc 1 cmr 1 a 2 2b 2 3 Cho abc 1 chứng minh 1 a 2 2b 2 3 2 3 6a 3b )- 1 2 a 2b 3 a 2b 2 )- 2 2a 5b 1 1 2 3 4 a b c d e f g 1 2 3 yaa 1 + 1 = 2 + 2 = 3
