2 2 2B C A A B C A C B( )( )     2 ; ( )( )BC Y A B C B C A  ...

câu 2: - DE THI HSG TOAN LOP 8 CO DAP AN
DE THI HSG TOAN LOP 8 CO DAP AN

Câu 2:

2

2

2

b c a a b c a c b

( )( )

     

2 ; ( )( )

bc y a b c b c a

    

Cho: x =

Tính giá trị P = (x+y+xy+1)

3