2ab 3b 2 July 8, 2019 16 32 64 128 2ab 2a 3b 3 Factor 2ab 3b 2 3a 2 2ab 3b 2 A 2 2ab 3b 2 ≧ 0 2ab a 2 4ab 3b 2 P a 2 2ab 3b 2 (2ab) 3
