I : Phân tích đa thức thành nhân tử

1) x^4-3x^2-x+3

2) 3x+3y-x^2-2xy-y^2

3) x^4-x

4) x^2+5x+4

5) 4x^2+4x-8

6)x^2+x-42

7) 5x^2-3x-2

8) x^2-4x-1

9) x^2-7xy+12y^2

help me

I : Complete the sentences in reported speech . Note the change of pronouns in some sentences

"Don't touch it " She said to him

\(\rightarrow\)she told him ............................

"Don't do that again " he said to me \(\rightarrow\) she told him .................................

"Don't talk to me like that " he said \(\rightarrow\) he told her ...............................

"Don't repair the computer yourself " she warned him \(\rightarrow\) she warned him..........................

"Don't go out without me " he begged her \(\rightarrow\) he begged her...................................

"Don't forget your bag " she told me \(\rightarrow\)she told me ...................................

"Don't eat in the lab " the chemistry teacher said \(\)\(\rightarrow\) the chemistry teacher told his students ...............................

"Don't give yourself up " he advised her \(\rightarrow\) he advised her ..................................

"Don't hurt yourselves , boys " she said \(\rightarrow\) she told the boys .......................

help me

I : Add a sentence with too or enough and : difficult , funny , heavy , high , hot and loud

1: Mike and Harriet couldn't lift the piano . It was ______

2: Tom won't repeat the joke . It isn't ______

3: Emma can't reach the top shelf . It's _______

4; We can't understand the poem . It's _______

5: Not everyone could hear the music . It wasn't ______

6: The tea had got cold . John couldn't drink it . It wasn't

help me

I : Complete the sentences using too much , too many or enough

1: We've been so busy today so we didn't even have .......... time for lunch

2: I'd like to go to the cinema , but I haven't got .............. money

3: I can't drink this soup . It's got .......... salt in it

4: We didn't really enjoy the party . These were far .......... people there

5: We couldn't make an omelet because we didn't have ........... eggs

help me