... 26 24 20, 2 3 3 121, 3 14 4 3 22, 2 1 x xx x x x xx x x x x xx x x x x x x + + + + + ++ + + + + + + + + +( )22 2 2 2 4 4 4 4 4 4 4 4 4 4 21, (1 ) 4 (1 ) 2, 8 363, 4 4, 64 5, ... ++ + + ++ + + + +2 2 2 2 2 2 22 2 4 41, ( 4) ( 6)( 10) 128 2, ( 1)( 2)( 3)( 4) 24 3, ( 4 8) 3 ( 4 8) 2 4, ( ) 4 4 125, 2 2 2 15 6, ( )( 2 )( 3 )( 4 )7, 6 11x x x x x x x xx x x x x x ... h¹n, víi n = 4 th× : (a + b) 4 = a 4 + 4a3b + 6a2b2 + 4ab3 + b 4 vµ víi n = 5 th× : (a + b)5 = a5 + 5a 4 b + 10a3b2 + 10a2b3 + 10ab 4 + b523. Chuyên đề: Phân tích...