(X-2)(3+X )>0

1.(2x+3)(x-4)+(x-5)(x-2)=(3x-5)(x-4)

2.x^2(x-2019)=2019-x

giải các pt

-2*(X-2)*(2+X)+(X-3)² rút gọn

X^{2_{-3Xy+2X-6y phân tích đa thức thành nhân tử}}

19 tom told us i do not understand what you are saying 

tom told...

20 whch way did thay go he asked me 

he asked me...

21 open the door he said to them 

he told them...

22 where are you going he saked her 

he asked...

23 lan said to hung you should not play computer games so much

lan told...

24 bring it black if it doesn't fit i said to her 

i told...

25 don't try to open it now she said to us 

she told...

26 is it gong to be a fine day to day i asked her 

i asked...

27 the doreigners said we don't eat this kind of food 

the foreigners said...

28 is the bus stationfar away the girl asked

the girl wanted to know...

29 don't stay out late amm tom said 

tom told...

30 please let me borrow your car he said to her 

he asked...

5 i don't know what mai is doing now she said 

she said...

6 don't dorget to send your parents my regards lan said 

lan told...

7 mary said i can go to the movies with you john

mary said to...

8 linh said to her friend turn off the light before going out

linh asked....

9 i said to him stay at home 

i told.....

10 my mother said to the kids stop fighting

my mother told...

11 the teacher said don't make noise in the class

the teacher asked me...

12 i can speak english well said his mother 

his mother said...

13the child said to the beggar are you very poor 

the child asked....

14 he said to lan i will visit ha long bay

he said to...

15 the poilice asked where did you stay last night 

the poilice asked....

16 he's not at home she says 

she says that...

17 mr.nam said i am taking the ielts test tomorrow

mr.nam said...

18 my mother said you should go to bed early

my mother said...

1 the teacher said to nam follow me please

the teacher told....

2 i want to go shopping with you this aftenoon nga said to her brother

nga said to...

3 my sister wants to be a singer said he 

he said...

4 i will buy a new bike next week she said 

she said...

chọn chữ cái a, b, c, d để cho biết phần gạch chân cần sửa là phần đóng dấu phẩy

1 i (A)'asked' him how far(B)'was it'from my scholl to the past office(C)'if' went there(D)'by taxi'

2 they asked me (A)'that' i (B)'could' do (C) some shopping (D) 'with' them

3 her mother (A)'told' her (B) 'do not go' out with (C) 'him' the day (D) 'before'

4 she said (A) 'that' the book (B)'in' the library (C) 'would be' available (D) 'tomorrow'

5 he (A) 'asked' her (B) 'thinking about' that example (C)'again' because it needed (D)'correcting'