Cho đa thức f(x)=-3x\(^2\)+x-1+x\(^4\)-x\(^3\)-x\(^2\)+3x\(^4\) g(x)=x\(^4\)+x\(^2\)-x\(^3\)+x-5+5x\(^3\)-x\(^2\)

a) thu gọn và sắp xếp các đa thức trên theo lũy thừagiảm dần của biến

b) tính f(x)-g(x), f(x)=g(x)

Cho đa thức P(x)=ax\(^3\)+bx\(^2\)+cx+d (a,b,c,d là các số hữu tỉ ) Biết P(1) =100, P(-1)=50,P(0)=1,P(2)=120. Tính P(3)

Cho đa thức f(x)=ax\(^2\)+ bx+c với a,b,c là các số thực. Biết rằng f(0): f(1);f(2) có giá trị nguyên. Chứng minh 2a,2b có giá trị nguyên

Viết lại câu sau sao cho nghĩa không đổi:

1.Although lan was poor student, she studied very well.

........................................................................................

2. Hoa could not go to school because she was sick.

Because of...................................................

3. Hung was receive many closthes in this programmer.

Many closthes.......................

4. they speak E all over the world.

English.........................

Sắp xếp các từ để tạo thành câu

1.sources/you/some/can/name/non-renewable/?

2. source/solar/a/renewable/is/energy/energy/of/.

3. leave/off/you/home/the/light/turn/should/before/you.

4. should/to/electricity/how/we/do/save/?

5. protect/in/energy/environment/we/use/wind/future/may/to/the.

6. source/of/environment/are/good/energy/renewable/for/.

7. solar/solar/power/panels/we/through/get

. Sắp xếp các từ để tạo thành câu.

1. name/ can/ Britain/ some/ in/ festivals/ you/?

_____________________________________________________________________________________

2. celebrated/ how/ is/ Thanksgiving/ often/?

_____________________________________________________________________________________

3. celebrated/ is/ it/ annually/.

_____________________________________________________________________________________

4. place/ that/ festival/ when/ take/ does/?

_____________________________________________________________________________________

5. festival/ you/ how/ celebrate/ Mid-fall/ do/?

_____________________________________________________________________________________

6. moon/ we/ eat/ lanterns/ the/ cakes/ fruits/ ,/ light/ and/ and/.

_____________________________________________________________________________________

7. Lunar/ is/ New/ what/ Year/?

___________________________________

Although there are many celebrations throughout the year, Tet or the Luna New Year holiday is the most important celebration for Vietnamese people. Tet is a festival which occurs in late January or early February. It is a time for families to clean and decorate their homes, and enjoy special food such as sticky rice cake. Family members who live apart try to be together at Tet.

Passover is in late March or early April. This festival is celebrated in Israel and by all Jewish people. On this festival, people celebrate freedom from slavery. Passover is also an ancient spring festival. On the first and second nights of Passover, Jewish families eat a special meal called the Seder.

Easter is a joyful festival which is celebrated in many countries. It happens at around the same time as Passover. On Easter Day (Easter Sunday), many young children receive chocolate or sugar eggs – as long as they are good. In many countries, people crowd the streets to watch colorful parades.

1. When does Tet occur?

_____________________________________________________________________________________

2. What do people do during Tet?

_____________________________________________________________________________________

3. Where is the Passover celebrated?

_____________________________________________________________________________________

4. Who celebrates the Passover?

_____________________________________________________________________________________

5. What do people do in the Passover?

_____________________________________________________________________________________

6. When is Easter celebrated?

_____________________________________________________________________________________

7. What do people do in Easter?

________________________________________

Hãy đặt câu hỏi cho những phần gạch chân trong các câu sau.

1. People eat traditional foods in this festival.

_____________________________________________________________________________________

2. Children are very happy because they receive a lot of lucky money from their relatives.

_____________________________________________________________________________________

3. Diwali celebrations often last about five days.

_____________________________________________________________________________________

4. In the USA, Thanksgiving is celebrated on the fourth Thursday of November.

_____________________________________________________________________________________

5. We took these photos at the Tulip Time Festival in Holland.

_____________________________________________________________________________________

6. People danced and played some folk games during the Spring Festival.

_____________________________________________________________________________________

Sắp xếp các từ để tạo thành câu.

1. name/ can/ Britain/ some/ in/ festivals/ you/?

_____________________________________________________________________________________

2. celebrated/ how/ is/ Thanksgiving/ often/?

_____________________________________________________________________________________

3. celebrated/ is/ it/ annually/.

_____________________________________________________________________________________

4. place/ that/ festival/ when/ take/ does/?

_____________________________________________________________________________________

5. festival/ you/ how/ celebrate/ Mid-fall/ do/?

_____________________________________________________________________________________

6. moon/ we/ eat/ lanterns/ the/ cakes/ fruits/ ,/ light/ and/ and/.

_____________________________________________________________________________________

7. Lunar/ is/ New/ what/ Year/?

Đọc đoạn văn và trả lời câu hỏi.

Advantages of festivals

Although there are many celebrations throughout the year, Tet or the Luna New Year holiday is the most important celebration for Vietnamese people. Tet is a festival which occurs in late January or early February. It is a time for families to clean and decorate their homes, and enjoy special food such as sticky rice cake. Family members who live apart try to be together at Tet.

Passover is in late March or early April. This festival is celebrated in Israel and by all Jewish people. On this festival, people celebrate freedom from slavery. Passover is also an ancient spring festival. On the first and second nights of Passover, Jewish families eat a special meal called the Seder.

Easter is a joyful festival which is celebrated in many countries. It happens at around the same time as Passover. On Easter Day (Easter Sunday), many young children receive chocolate or sugar eggs – as long as they are good. In many countries, people crowd the streets to watch colorful parades.

1. When does Tet occur?

_____________________________________________________________________________________

2. What do people do during Tet?

_____________________________________________________________________________________

3. Where is the Passover celebrated?

_____________________________________________________________________________________

4. Who celebrates the Passover?

_____________________________________________________________________________________

5. What do people do in the Passover?

_____________________________________________________________________________________

6. When is Easter celebrated?

_____________________________________________________________________________________

7. What do people do in Easter?