Trang cá nhân của Thùyy Lynhh

Thùyy Lynhh đã đăng một câu hỏi 24 tháng 8 2021 lúc 18:38

a) (X-2)(x+3)-3(4x-2)=(x-4)\(^{^{ }2}\)

b) \(\dfrac{2x^2+1}{8}-\dfrac{7x-2}{12}=\dfrac{x^2-1}{4}-\dfrac{x-3}{6}\)

c) \(x-\dfrac{2x-2}{5}+\dfrac{x+8}{6}=7+\dfrac{x-1}{3}\)

d) \(\left(2x+5\right)^2=\left(x+2\right)^2\)

e) \(x^2-5+6=0\)

g) \(2x^3+6x^2=x^2+3x\)

h) \(\left(x+\dfrac{1}{2}\right)^2+2\left(x+\dfrac{1}{x}\right)-8=0\)

mọi người giúp e với ạ

Thùyy Lynhh đã đăng một câu hỏi 24 tháng 8 2021 lúc 18:16

Thùyy Lynhh đã đăng một câu hỏi 24 tháng 8 2021 lúc 17:41

đề: viết đoạn văn trình bày suy nghĩ của em về những đóng góp thầm lặng

Thùyy Lynhh đã đăng một câu hỏi 23 tháng 8 2021 lúc 15:18

My parents are farmers. They work very (21) ………… on the paddy fields. They usually get (22) ………… very early in the morning. After (23) ………… breakfast, they feed the buffaloes, pigs, chickens, ducks and they (24) ………… the eggs. From about eight, they work on the fields. They grow rice but their main (25) ………… is vegetables. From eleven thirty to one thirty, they rest and have lunch. They continue to work until five in the afternoon, then they come back home.

Câu 21. A. harder B. hard C. hardly D. hardest

Câu 22. A. off B. on C. in D. up

Câu 23. A. have B. had C. to have D. having

Câu 24. A. collect B. take C. see D. have

Câu 25. A. period B. time C. harvest D. crop

Thùyy Lynhh đã đăng một câu hỏi 23 tháng 8 2021 lúc 15:07

Câu 11. We were late for school because of the heavy rain.

A. Because it rains heavily, we were late for school.

B. Because it rained heavily, we are late for school.

C. Because of the fact that it rained heavy, we were late for school.

D. Because it rained heavily, we were late for school .

Câu 12. It’s two years since I last spoke to her.

A. I have spoken to her for two years. B. I haven’t spoken to her for two years.

C. I have not spoken to her since two years. D. I haven’t spoke to her for two years.

Câu 13. No one in my class is more intelligent than Lan.

A. Lan is the most intelligent student in my class. B. Lan is more intelligent than no one in my class.

C. Lan is not as intelligent as every one in my class. D. Lan is the most intelligentest student in my class.

Mark the letter A, B, C or D on your answer sheet to indicate the option that needs correcting.

Câu 14. Today was such beautiful day that I couldn’t bring myself to complete all my chores.

A. myself B. to complete C. my chores D. such beautiful

Câu 15. They are planning on attending the convention next month, and so I am.

A. so I am B. planning on C. attending D. next

Thùyy Lynhh đã đăng một câu hỏi 23 tháng 8 2021 lúc 14:49

Câu 1. My house………….. in 1999

A. was built B. is built C. has been built D. was building

Câu 2. An: “How well you are playing!” Huy: “___________________”

A. I think so. I’m proud of myself. B. Many thanks. That’s a nice compliment.

C. Really? I’ve got it. D. Say it again. I like to hear your words.

Câu 3. If Mr. Tuan___________ rich, he would travel around the world.

A. is B. will be C. were D. been

Câu 4. We explained___________ him how we should operate the machine.

A. to B. for C. with D. about

Câu 5. Ms Hoa drove so___________ that she had an accident last night.

A. carefully B. careful C. carelessly D. careless

Câu 6. There’s nothing good on TV now, __________?

A. is there B. is it C. isn’t there D. are there

.Câu 7. The woman___________ to your mother is my aunt.

A. is talking B. was talking C. who is talking D. talked

Câu 8. After each period, we have a___________ break.

A. ten minutes B. tenth- minutes C. tenth- minute D. ten - minute

Câu 9. It’s no use___________ a language if you don’t try to use it.

A. to learn B. learned C. learning D. Learn

Câu 10. He asked Lan if she___________ a laptop computer the following day.

A.would buy B. will buy C. bought D. buy

Thùyy Lynhh đã đăng một câu hỏi 23 tháng 8 2021 lúc 13:49

274.	Where will you go if you ...............					a car?
		A. has		B. have			C. had	D. having
275.	She must ..............		this job as soon as possible.
		A. to start		B. starting			C. started	D. start
276.	The businessmen of ancient Egypt hired ...........						to shout about the things they wanted to
sell.
		A. players		B. hackers			C. singers	D. criers
277.	It took me 2 hours ................			this work.
		A. do		B doing			C. did	D. to do
278.	We can see many international programs ...............						different channels.
		A. on		B. in			C. at	D. of
279.	The Internet is		very fast to get		................
		A. inform		B. information			C. informatic	D. informative
280.	I don’t know .................			website is wonderful for me.
		A. who		B. when			C. which	D. why
281.	When did you finish ..............			the kitchen?
		A. paint		B. to paint			C. painting	D. painted
282.	He went away without			..............		the door.
		A. to close		B. closed			C. closing	D. close
283.	They spent all morning ..........				their homework.
		A. to do		B. doing			C. do	D. done
284.	I am fond of ...........		to the movie on Sundays.
		A. go		B. went			C. gone	D. going
285.	I ask him ....................
		A. what is his name?					C. what his name is
		B. what name is he.				D. what is his name
286.	I	................... him three years ago.
		A. will see		B. see			C. saw	D. have seen
287.	We will be there ...........			5 o’clock early ..............			the morning.
		A. on/in		B. at/in			C. in/on	D. in/at
288.	Susan studied very well, ........... she could pass the exam easily.
		A. if		B. so			C. but	D. or
289.	The United States has a .............					of around 250 million.
		A. population B. introduction				C. separation		D. addition
290.	Vietnamese people are very .....................
		A. friend		B. friendly			C. friendship	D. friendliness

Thùyy Lynhh đã chọn một câu trả lời của Khinh Yên là đúng 23 tháng 8 2021 lúc 13:40

Thùyy Lynhh đã đăng một câu hỏi 23 tháng 8 2021 lúc 13:24

256.	He thinks that ................	on the internet is a waste of time.A2
	A. chat	B. to chat	C. chatting		D. chatter
257.	We don’t allow passengers .............		in this part of the building.
	A. to smoke	B. smoke	C. smoking		D. smoked
258.	Excuse me. Can I ...........	in this area?
	A. to smoke	B. smoke	C. smoking		D. smoked
259.	You don’t like tea, ..............?
	A. do you	B. did you	C. didn’t you D. don’t you
260.	Peter will be here soon, ...............?
	A. will he	B. won’t he	C. is he		D. isn’t he
261.	Tom plays soccer very well, ......................?
	A. does he	B. doesn’t he C. did he			D. didn’t he
262.	He never goes to work late,...................?
	A. does he	B. doesn’t he C. did he			D. didn’t he
263.	They enjoyed ........................	football after school.
	A. to play	B. playing	C. played		D. play
264.	Mary bought this car last night, ................?
	A. didn’t she B. doesn’t she		C. isn’t she		D. hasn’t she
265.	She would come to see you if she .................		your address.
	A. having	B. had	C. has		D. have
266.	The Internet has developed and become part ..........			our daily life.
	A. to	B. with	C. at		D. of
267.	This picture is yours,...............?
	A. was it	B. is it	C. isn’t it		D. wasn’t it
268.	Can you please stop ..........	so much noise?
	A. to make	B. make	C. making		D. made
269.	We’re looking forward to ................		you.
	A. see	B saw	C. seen		D. seeing
270.	Kien Thuc Ngay Nay is one of the ...............		popular magazines.
	A. much	B. many	C. best		D. most
271.	The Internet is available in our city, so we can...............				get access to it.
	A. easily	B. easy	C. uneasily		D. uneasy
272.	Where would you go if you ...............		a car?
	A. has	B. have	C. had		D. having
273.	I wish I could make a trip ........................		the world.

		A. in		B. around			C. to	D. at
274.	Where will you go if you ...............					a car?
		A. has		B. have			C. had	D. having
275.	She must ..............		this job as soon as possible.
		A. to start		B. starting			C. started	D. start
276.	The businessmen of ancient Egypt hired ...........						to shout about the things they wanted to
sell.
		A. players		B. hackers			C. singers	D. criers
277.	It took me 2 hours ................			this work.
		A. do		B doing			C. did	D. to do
278.	We can see many international programs ...............						different channels.
		A. on		B. in			C. at	D. of
279.	The Internet is		very fast to get		................
		A. inform		B. information			C. informatic	D. informative
280.	I don’t know .................			website is wonderful for me.
		A. who		B. when			C. which	D. why
281.	When did you finish ..............			the kitchen?
		A. paint		B. to paint			C. painting	D. painted
282.	He went away without			..............		the door.
		A. to close		B. closed			C. closing	D. close
283.	They spent all morning ..........				their homework.
		A. to do		B. doing			C. do	D. done
284.	I am fond of ...........		to the movie on Sundays.
		A. go		B. went			C. gone	D. going
285.	I ask him ....................
		A. what is his name?					C. what his name is
		B. what name is he.				D. what is his name
286.	I	................... him three years ago.
		A. will see		B. see			C. saw	D. have seen
287.	We will be there ...........			5 o’clock early ..............			the morning.
		A. on/in		B. at/in			C. in/on	D. in/at
288.	Susan studied very well, ........... she could pass the exam easily.
		A. if		B. so			C. but	D. or
289.	The United States has a .............					of around 250 million.
		A. population B. introduction				C. separation		D. addition
290.	Vietnamese people are very .....................
		A. friend		B. friendly			C. friendship	D. friendliness

Thùyy Lynhh đã đăng một câu hỏi 23 tháng 8 2021 lúc 8:45

b)4x^2-1=(2x+1) (3x-5)

c)(x+1)^2= 4(x^2-2x+1)

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