RÚT GỌN 2222Y XY X2 (1 3 )Y X2 (1 3 )2 (1 3 )Y X2 (1 3 )  22223X...

câu 5 : - TRAC NGHIEM TOAN 8 HKI
TRAC NGHIEM TOAN 8 HKI
câu 5 : Rút gọn

2

y x2 (1 3 )  3x d/a/ c/ b/

3 4

2

8 ( )x y x y

2 5

12 ( )x y y x