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80

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16

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Đã trả lời

phân tích thành nhân tử(sử dụng hằng đẳng thức) (4t+2)^3+8(1-2t)^3

x^3+y^3-z^3+3xyz

x^2+6x+8

2x^2+14x+12

9x^2+24x+15

6x^2-xy-7y^2
 

Trả lời (1)
16:21 28/08/2021

phân tích thành nhân tử: (a^2+b^2-5)^2-2(ab+2)^2 dùng hằng đẳng thức ạ

Trả lời (1)
18:27 27/08/2021

II. Complete using the correct form of the words in the box.

commute • deliver • earn • gain • make • sack • win
 

20. No sooner had Denzil …………………………………. the lottery than he decided to quit his job.

21. How long does it take you to ………………………………….to work every day?

22. How much does a state school teacher …………………………………. each year?

23. Over a hundred workers were …………………………………. redundant when the factory closed.

24. Our next-door neighbor was …………………………………. for stealing company property.

25. Does your local supermarket ………………………………….?

26. Rarely have I ………………………… so much valuable experience in such a short space of time.

Trả lời (1)
11:58 24/08/2021

tính nhanh: 0,12.90-110.0,6+36-25.6

Trả lời (1)
13:24 22/08/2021

17.  I’m sorry but we have decided not to accept your application. regret

I.......................................................................................... we have decided to reject your application.

18.  Funnily enough I’d prefer a pizza for a change. rather

Funnily enough........................................................................................................................................................

19.  We were not allowed to drink too much Coke when we were children. let

Our parents........................................................................................................................................................

20.  I think it would be a good idea to take the train. suggest

I...................................................................................................................................................................

21.  She succeeded in persuading her parents to let her go. managed

She..............................................................................................................................................................

22.  It looks as if this door’s locked after all. appears

This ....................................................................................................................................................................

23.  One of the things I hate is people eating popcorn in the cinema. stand

One of the things I...................................................................................................................................................................

24.  The singer arrived two hours late but I’m glad I waited for him. worth

The singer..........................................................................................................................................................

25.  Jack said he had to catch the early flight. insisted

Jack............................................................................................................................................................

26.  I can’t wait to get your next letter. forward

I................................................................................................................................................................

giúp mk với nhé,đang cần gấp lắm ạ

Trả lời (1)
16:54 10/08/2021

III. Complete each sentence with a form of one of the verbs from the box. Use each verb one only.

afford
bear
continue
expect
happen
learn
love
offer
prefer
pretend
 

27.  John really ……………………………………. spending all day at the beach.

28.  I’m completely broke, so I can’t ……………………………………. to go on holiday.

29.  Excuse me, but do you……………………………………. to know the way to Old Street?

30.  We ……………………………………. our team to win, but they were badly beaten.

31.  Carolyn ……………………………………. to speak French and German when she was at school.

32.  Even when the examiner told him to stop, Robert ……………………………………. speaking.

33.  I’m sorry, but I can’t ……………………………………. to listen to this awful music!

34.  Last week Chris ……………………………………. to help me paint my bike.

35.  Paul ……………………………………. to have a bad leg so he didn’t have to go to the gym.

36.  Sam usually ……………………………………. playing football to doing homework.

Trả lời (1)
16:53 09/08/2021

Change the words in bold type so that the sentences make sense. Each of the words is an ANAGRAM of the correct word.

50.  Your knowledge of computer spreadsheets will be a big seats ……………………… in this job.

51.  They design ……………………… the contract, so it’s a bit late to change their minds now.

52.  The trouble is that you often laid ……………………… the wrong number.

53.  Do I detect a thin ……………………… of jealousy in your tone?

54.  He was a man of very strong ladies ………………………, but sadly he often failed to live up to them.

55.  Now I know that you idle ……………………… about everything. I feel used and deceived. I hate you.

56.  She remained interested in politics. After she became blind, she read everything in liberal ……………………… she could lay her hands on.

57.  Which would you prefer - the scenic outer ………………………, or the more direct one taking the inner ring-road?

58.  She wore a pretty cotton trouser suit, pale yellow with thin black priests ………………………

59.  He was angry that we failed to discuss the wide anger ……………………… of issues that he had raised in his report.

60.  I want to study remain ……………………… biology at university, because I love the sea.

61.  It’s a sort of theme restaurant. There’s poetry on the walls, and the menu is written in serve ………………………

62.  This analysis shows up reveals ……………………… problems with our accounting system which will have to be sorted out.

63.  Claudia spider ……………………… herself on her ability to handle insects and other creepy-crawlies without any fear whatsoever.

64.  At 16,000 feet, he grew nauseated and weak, suffering from latitude ……………………… sickness

giúp mình nhé

Trả lời (1)
19:48 02/08/2021

I. Complete the sentences. Use the correct form of the verbs in brackets.

1.    The architect expects …………………………………………. the building in April. (complete)

2.    I really didn’t mean …………………………………………. you. (offend)

3.    Zac gave up …………………………………………. several years ago. (smoke)

4.    We managed to avoid …………………………………………. an accident. (have)

5.    Have you finished …………………………………………. your essay yet? (write)

6.    I chose …………………………………………. German rather than French. (learn)

7.    Young children enjoy …………………………………………. round the house. (help)

8.    Geraldine is hoping …………………………………………. law at Cambridge. (study)

9.    My new job will mean …………………………………………. all over the world. (travel)

10.  Dmitri and Ursula have postponed …………………………………………. married for a few months. (get)

11.  Magnus refused …………………………………………. any money for the work he’d done. (accept)

giúp mình với nha

Trả lời (1)
10:53 02/08/2021
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