1. 10x²(x - 1) + 15xy(1 - x)

= 10x²(x - 1) - 15xy(x - 1)

= (10x² - 15xy)(x - 1)

= 5x(2x - 3y)(x - 1)

2. Hình như sai đề

2. 25x² - x² + 10x - 2

= 25x² + 10x - x² - 2

= -(25x² - 10x + x²) - 2

= -(5x - x)² - 2

= -(5x - x)² - \(\left(\sqrt{2}\right)^2\)

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

mik lớp 5 nhg ko bt gì :))

có cái nịt hoặc chẳng có cái gì.

2 cái quả cho 2 bạn rồi thì còn cái đĩa cho nốt người thứ 3 chứ cong gì nưa

cái này cần IQ nha thông minh nới được

cậu dễ mà

# Em tham khảo nhé 

Cartoon is favorite subject of all kids around the world. Especially, Tom and Jerry film impresses me with its funny detail and interesting action. The film is about a cat and a mice, they hate each other and always find many pranks to play. The two main characters seem to live in a house with different owner. Tom is much bigger than Jerry but he is quite stupid and aggressive. On the contrary, Jerry is smart and flexible as he always knows how to get away with Tom’s making trouble. Beside, there are other actors such as: a dog, a yellow bird, a seal or even a cute baby. Finally, after many tricks, they come back to love and forgive other’s mistake for a better life. The movie is famous for its various incidents, attractive appearance as well as meaning suitable for children. When I was a child, I watch Tom and Jerry everyday; therefore, it becomes a vivid memory about my childhood. Although there are hundreds of episodes, the cartoon is not boring or repetitive. One episode tells us one different story and teaches children many lessons in life. The movie teaches people how to get on well with others, love and freely share inside thought to another. Since cartoon plays a crucial role in kid’s soul and their process to grow up, it is necessary to maintain and develop the film making industry

Chúc e thi tốt, không biết bài này có nặng kiến thức không nữa

Bài mk ngắn hơn bài trên nè:

     There are many types of movies, each with its own unique and interesting features. But I think I like anime the most. Vad out of all the anime I like Detective Conan the most. It was composed by Aoyama Gosho. The movie is about Kudo Shinichi, a very famous high school student detective who often helps the police solve difficult cases. During one time while following a blackmail case, he was discovered by a member of the Black Organization. They tried to drink APTX4869, causing him to shrink. Later, he called himself Edogawa Conan and was adopted by Mori Ran and brought to her father's detective office, Mori Kogoro. Throughout the series, Conan quietly assists Mr. Mori in solving cases. At the same time, he also had to enroll in Primary School, thanks to which he became friends with many people and formed the Child Detective Team. The plot of the movie is interesting, for now the movie is not over yet. I like this drama so much, I will continue to watch Conan in the future.

   There are many genres of movies, each with its own unique and interesting features. But I think I like anime the most. And out of all the anime I like Detective Conan the most. It was composed by Aoyama Gosho. The film is about Kudo Shinichi, a very famous high school detective who often helps the police solve difficult cases, but is shrunken down due to being forced to take a drug. Later, he called himself Edogawa Conan and was adopted by Mori Ran. Throughout the series, Conan silently assists Mr. Mori in solving cases. At the same time, he became friends with many people and formed the Detective Boys. The plot of the film is fascinating, at the moment the film has not ended. I like this drama so much, I will continue to follow Conan in the future.

thế này được ko bạn

1+1=3-1=4-2=5-3=6-4=7-5=8-6=9-7=10-8=11-9=12-10=13-11=14-12=15-13=16-14=17-15=18-16=19-17=20-18

Ket ban voi mk nhe

Can you avoid getting sunburn by wearing a hat?

Áp dụng bất đẳng thức cô - si ta có:
\(a+b\ge2\sqrt{ab}\)
\(\dfrac{1}{a}+\dfrac{1}{b}\ge\dfrac{2}{\sqrt{ab}}\)
Nhân từng vế của 2 bất đẳng thức trên ta được \(\left(a+b\right)\left(\dfrac{1}{a}+\dfrac{1}{b}\right)\ge4\)
\(\Rightarrow\dfrac{1}{a}+\dfrac{1}{b}\ge\dfrac{4}{a+b}\)

Vậy...

Chứng minh: \(\left(a+b\right)\left(\dfrac{1}{a}+\dfrac{1}{b}\right)\ge4\)

\(\Rightarrow2+\dfrac{a}{b}+\dfrac{b}{a}\ge4\)

\(\Rightarrow2+\dfrac{a}{b}+\dfrac{b}{a}\ge2+2\sqrt{\dfrac{a}{b}.\dfrac{b}{a}}=2+2=4\)

\(\Rightarrow\left(a+b\right)\left(\dfrac{1}{a}+\dfrac{1}{b}\right)\ge4\)

\(\Rightarrow\dfrac{1}{a}+\dfrac{1}{b}\ge\dfrac{4}{a+b}\)

A

A

A ( mk nghĩ vậy )

ukm

Cảm ơn!!! Bạn cũng z nhé!:)

You too! Good luck ;)

1. Mike can’t buy that car because he doesn’t have enough money.

Mike can’t afford to buy that car_____________.

2. Susan looks forward to see her father soon.

Susan hopes to see her father soon _______________________________________________.

3. She said she didn’t breaking the vase.

aShe denied breaking the vase._______________________________________________.

4. She is thinking about going picnic this weekend.

She is considering going picnic this weekend _______________________________________________.

5. She said she would play badminton with her friends this afternoon.

aShe decided to play badminton with her friends this afternoon. _______________________________________________.

6. She can’t put up with this short of money anymore.

aShe can’t stand this short of money anymore. _______________________________________________.

7. These windows will have to be cleaned again.

aThese windows need to be cleaned again. ____________________________________________.

8. The police told us not to go out of this building.

aThe police warned us  not to go out of this building._______________________________________________.

9.She refused to steal  the car.

She denied stealing the car _______________________________________________.

10. Manny said he didn’t stole the car, but he said he borrowed it.

Manny denied stealing the car._______________________________________________

1. Mike can’t buy that car because he doesn’t have enough money.

aMike can’t buy that car because of not having enough money

2. Susan looks forward to see her father soon.

aSusan hopes to sê her father soon.

3. She said she didn’t breaking the vase.

aShe denied breaking the vase .

4. She is thinking about going picnic this weekend.

aShe is look forward to going picnic this weekend

5. She said she would play badminton with her friends this afternoon.

aShe decided to play badminton with her friends this afternoon.

6. She can’t put up with this short of money anymore.

aShe can’t suffer from this short of money anymore.

7. These windows will have to be cleaned again.

aThese windows need cleaning again.

8. The police told us not to go out of this building.

aThe police warned us not to go out of this building.

9.She refusedto steal  the car.

aShe denied stealing the car.

10. Manny said he didn’t stole the car, but he said he borrowed it.

aManny denied stealing the car but he said he borrowed it.