ai có thể giúp mình giải bài này vs đc không mình đang cần rất gấp (làm chi tiết hộ mình nhé, xin cảm ơn)

Bài 4:

a, √3x+4−√2x+1=√x+33x+4−2x+1=x+3

b, √2x−5+√x+2=√2x+12x−5+x+2=2x+1

c, √x+4−√1−x=√1−2xx+4−1−x=1−2x

d,√x+9=5−√2x+4x+9=5−2x+4

Bài 5:

a, √x+4√x+4=5x+2x+4x+4=5x+2

b, √x2−2x+1+√x2+4x+4=4x2−2x+1+x2+4x+4=4

c, √x+2√x−1+√x−2√x−1=2x+2x−1+x−2x−1=2

d,√x−2+√2x−5+√x+2+3√2x−5=7√2x−2+2x−5+x+2+32x−5=72

Ví Dụ 1:

a, √2x−1=√2−12x−1=2−1

b, √x+5=3−√2x+5=3−2

c, √3x2−√12=03x2−12=0

d, √2(x−1)−√50=02(x−1)−50=0

Thu gọn

ai có thể giúp mình giải bài này vs đc không mình đang cần rất gấp (làm chi tiết hộ mình nhé, xin cảm ơn)

Bài 4:

a, √3x+4−√2x+1=√x+33x+4−2x+1=x+3

b, √2x−5+√x+2=√2x+12x−5+x+2=2x+1

c, √x+4−√1−x=√1−2xx+4−1−x=1−2x

d,√x+9=5−√2x+4x+9=5−2x+4

Bài 5:

a, √x+4√x+4=5x+2x+4x+4=5x+2

b, √x2−2x+1+√x2+4x+4=4x2−2x+1+x2+4x+4=4

c, √x+2√x−1+√x−2√x−1=2x+2x−1+x−2x−1=2

d,√x−2+√2x−5+√x+2+3√2x−5=7√2x−2+2x−5+x+2+32x−5=72

Ví Dụ 1:

a, √2x−1=√2−12x−1=2−1

b, √x+5=3−√2x+5=3−2

c, √3x2−√12=03x2−12=0

d, √2(x−1)−√50=02(x−1)−50=0

ai có thể giúp mình giải bài này vs đc không mình đang cần rất gấp (làm chi tiết hộ mình nhé, xin cảm ơn)

Bài 4:

a, \(\sqrt{3x+4}-\sqrt{2x+1}=\sqrt{x+3}\)

b, \(\sqrt{2x-5}+\sqrt{x+2}=\sqrt{2x+1}\)

c, \(\sqrt{x+4}-\sqrt{1-x}=\sqrt{1-2x}\)

d,\(\sqrt{x+9}=5-\sqrt{2x+4}\)

Bài 5:

a, \(\sqrt{x+4\sqrt{x}+4}=5x+2\)

b, \(\sqrt{x^2-2x+1}+\sqrt{x^2+4x+4}=4\)

c, \(\sqrt{x+2\sqrt{x-1}}+\sqrt{x-2\sqrt{x-1}}=2\)

d,\(\sqrt{x-2+\sqrt{2x-5}}+\sqrt{x+2+3\sqrt{2x-5}}=7\sqrt{2}\)

Ví Dụ 1:

a, \(\sqrt{2x-1}=\sqrt{2}-1\)

b, \(\sqrt{x+5}=3-\sqrt{2}\)

c, \(\sqrt{3x^2}-\sqrt{12}=0\)

d, \(\sqrt{2}\left(x-1\right)-\sqrt{50}=0\)

III. Cirle the best option to complete each sentence:

1. This is the _________ river in the world

a. most long               b. longest                   c. long most               d. longer

2. Do you think older people drive _________ than younger people?

a. slow                                    b. slower                    c. more slow              d. more slowly

3. They all dance well, but John dances _________

a. better                      b. more good             c. the better               d. the best

4. Your computer is more expensive than _________

a. me                           b. my                          c. mine                                   d. myself

5. My car isn’t very new. Your car is _____ than my car

a. newer                     b. older                       c. not new                  d. less new

6. Who is _____ in your class?

a. the interlligentest                                     b. the most intelligent                     

c. more intelligent                                        d. the more intelligent

7. Praja returned home as _________ as he could

a. quick                      b. quicker                  c. quickest                 d. quickly

8. This is _________ elephant I have ever seen

a. the biggest             b. most big                 c. the most big                       d. bigger

9. He ran _________ than his friend

a. fastest                     b. faster                      c. fast                          d. more fast

10. This summer is not as hot _________ last summer

a. as                            b. than                        c. to                             d. like

11. “Could you talk _________ ? I’m learning my lessons”

a. as quietly               b. so quietly              c. more quietly          d. most quietly

12. It is _________ to talk about a problem than to solve it

a. more easier                        b. easier                     c. easy                        d. easiest

13 Jim is five centimeters _________ than Tom

a. higher                     b. taller                       c. tallest                     d. tall

14. Winning a place at university _________ for most students

a. has become as difficult                           b. becomes the most difficulty

c. is becoming more and more difficult    d. will become more difficult

15. The people here are _________ than I expected

a. more nice               b. most nice               c. nicer                                   d. nicest

16. My new boss isn’t as rude _________ my own boss

a. as                            b. so                            c. than                        d. that

20. She was _________ friendly person I’ve ever met

a. the most          b.more                      c.as             d. so

có ai biết làm bài này k mình đang cần cực gấp mong các bạn làm giúp cho mình (xin cảm ơn)

I.Hãy viết hình thức so sánh hơn và nhất của các tính từ sau:

1. So sánh ngang bằng.

a. This book/ not/ interesting/ I expected

_______________________________________________

b. Jack/ swim/ good/ Tom

_______________________________________________

c. we/work/twice/slow/ they.

_______________________________________________

d. A car/ not/run/ fast/ a train

_______________________________________________

e. My father/ carve /skilful/ my grandfather

_______________________________________________

2. So sánh hơn: (Nhấn mạnh các câu ss hơn)

a. My room/ comfortable/ yours

_______________________________________________

b. A plane/can fly/ quick/ a bird

_______________________________________________

c. Peter/ eat/ much/ I.

_______________________________________________

d .Your house/far/from school /my house. _______________________________________________

e. My father / cook/ good/ I

_______________________________________________

3. So sánh nhất: ( Nhấn mạnh theo 2 cách đã học)

a. Everest/ high/ mountion/ in the world

_______________________________________________

b. Mai/ talk/ slow / in my class.

_______________________________________________

c. English coffee/bad/ of all.

_______________________________________________

d. Anna/ behave/polite/ in the world.

_______________________________________________

e. They / play the guitar/ good/ of all

._______________________________________________

f. My grandmother/old/ in my village=>

có ai biết làm bài này k mình đang cần cực gấp mong các bạn làm giúp cho mình (xin cảm ơn)

I.Hãy viết hình thức so sánh hơn và nhất của các tính từ sau:

1. So sánh ngang bằng.

a. This book/ not/ interesting/ I expected

_______________________________________________

b. Jack/ swim/ good/ Tom

_______________________________________________

c. we/work/twice/slow/ they.

_______________________________________________

d. A car/ not/run/ fast/ a train

_______________________________________________

e. My father/ carve /skilful/ my grandfather

_______________________________________________

2. So sánh hơn: (Nhấn mạnh các câu ss hơn)

a. My room/ comfortable/ yours

_______________________________________________

b. A plane/can fly/ quick/ a bird

_______________________________________________

c. Peter/ eat/ much/ I.

_______________________________________________

d .Your house/far/from school /my house. _______________________________________________

e. My father / cook/ good/ I

_______________________________________________

3. So sánh nhất: ( Nhấn mạnh theo 2 cách đã học)

a. Everest/ high/ mountion/ in the world

_______________________________________________

b. Mai/ talk/ slow / in my class.

_______________________________________________

c. English coffee/bad/ of all.

_______________________________________________

d. Anna/ behave/polite/ in the world.

_______________________________________________

e. They / play the guitar/ good/ of all

._______________________________________________

f. My grandmother/old/ in my village=>

_______________________________________________

II. Complete the sentences using the correct form of the adjectives or adverbs in brackets

(chia về các dạng so sánh đúng)

III. Cirle the best option to complete each sentence:

1. The flower was.......... out of a single piece of valuable wood. 

A. carved              B. moulded       

C cast                   D. given

2. In this town, they_____ all the frames in steel.

A. make               B. have                     C. mould                    D. cast

3. She is skilled at ____ cloth.

A. giving               B. weaving                C doing                      D. carving 

4. If you like, I can_____ flowers on the cushion covers for you.

A. grow                B. make                    C. embroider               D. knit

5. Is it true that you.......... this woollen hat yourself?

A. knitted             B. wove                    C did                          D. carved

6. The doll has been.......... out of clay.

A. embroidered      B. cast                    C. woven                  D. moulded

7. I love going to this place _____ it's the quietest place in the city.

A. so                     B. though                  C. so that              D. as 

8. They keep changing the decoration of the shop_______ they can attract more young people.

A. so that              B. because                C. although           D when

9.________ he's young, she's the most famous artisan in the village.

A. When                B. Although                C. Whereas           D. In order to

10. Do you know who's______ his pottery workshop?

A. bring out           B. taking over            C. passing down    D. turning down

11. I've_______ the product catalogue and decided to buy this table.

A. found out          B. closed down            C. looked through   D. lived on

12. This sports centre is so small that it cannot______the demands of local residents.

A. keep up with        B. face up to            C. deal about            D. setup

13. When I turned up, the town hall was already_____ of teenagers.

A. full                   B. packed     C. crowded           D. jammed

14. She turned ______the new job in New York because she didn't want to move.

A. on                   B. down  C. off                   D. up

15. This city has one of the most___ underground rail networks in the world.

A. efficient                           B. fashionable   C . cosmopolitan                   D. fascinated

4. This laptop is much more user-friendly, but it costs________ the other one.

A. so much as                  B. as many as     C. twice as much as         D. twice as many

5. Today's cities are____than cities in previous times.

A. lots larger                  B. much larger    C. as large                     D. the largest

6. After I found all the information I needed, I________the computer.

 A. turned off                 B. switched on    C. looked for                  D. put off

7. Japan is the__________ developed country in the world.

A. most second             B. second in most        C. second most             D. two most

8. Factories and offices should be built in __________areas only.

A. rural                        B. Coastal      C. culture                     D. urban

ai giúp mình giải bài này với được k mình đang cần gấp ( xin cảm ơn)

Bài 1: 

a,√3x+4−√2x+1=√x+3

b, √2x−5+√x+2=√2x+1

c, √x+4−√1−x=√1−2x

d, √x+9=5−√2x+4

Bài 2:

a,√x+4√x+4=5x+2

b, √x2−2x+1+√x2+4x+4=4

c, √x+2√x−1+√x−2√x−1=2

d,√x−2+√2x−5+√x+2+3√2x−5=7√2

Bài 3:

a, x2−7x=6√x+5−30