Trần Phương Linh's Profile

Program CT_moi;

Uses crt;

Var n:integer;

Begin

Clrscr;

write('Nhap so N: ');

Readln(n);

If n mod 2= 0 then Write('Day la so chan') else Write('Day la so le');

Readln;

End.

VII:

27.traditional

28.unsuccesfully

29.organization

30.celebrating

VIII:

31.Chinese pronunciation is easier than English pronunciation.

32.She hasn't visited me for 2 years.

33.Did you used to go to the beach when you lived in Nha Trang?

34. The dentist said that we should brush our teeth three times a day.

a) m Mg + m O₂ = m MgO

9 + m O₂ = 15

m O₂ = 15-9

m O₂ = 6 (g)

Al₂O₃ + 6HCl -> 2AlCl₃ + 3H₂O

x²-x-6=0

x²+2x-3x-6=0

x(x+2)-3(x+2)=0

(x-3)(x+2)=0

=>x-3=0 hoặc x+2=0

=>x=3 hoặc x=-2