ÍM GTNN :

a) M = x2−6x+2018

b) N =x2−x

c) P =( x- 1) (x+3)

Giải phương trình sau: √x+12+√x−6−√x+2−√x−4=0

Điền từ :
1.Mai 's keen ___ english because she wants to be a tour guide .
2.My father usually takes care ___ his family carefully .
3. Nam congratulates his best friend ____ passing the contest .
4. The children are tired ___ their homework .
5. THe young are looking for ward _____ metting their teaches .
6. The old are thinking ___ buying now houses .