\(x^2\)-2xy-y ; B= \(-x^2\)-3xy-x

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19 tháng 8 2018

Bạn sang môn Toán hỏi nha.Vì đây là câu dễ nên mình trả lời luôn cho

\(x^3+2x^2y-x-2y\)

\(=\left(x^3-x\right)+\left(2x^2y-2y\right)\)

\(=x\left(x^2-1\right)+2y\left(x^2-1\right)\)

\(=\left(x^2-1\right)\left(x+2y\right)\)

\(=\left(x-1\right)\left(x+1\right)\left(x+2y\right)\)

19 tháng 8 2018

Đc lắm chàng tray :V

27 tháng 11 2018

Ý anh là sao

Em k hiểu

Cho vd ở từng loại hả anh

27 tháng 11 2018

Mà em mới học lớp 9 nên k bk:>>

26 tháng 10 2016

trang tiếng Anh muốn hỏi toán sang trang toán

5 tháng 11 2019

1.Do you love reading books?

→→Are you love reading books? ........

2.She studies hard.

→→She is .studying hard....

3. As a child, I used to ride a bike.

→→I often ..use to rode a bike as a child....

#Study well :P

5 tháng 11 2019

SENTENCE TRANSFORMATION

1.Do you love reading books?

→→Are you ...fond of reading books?.....

2.She studies hard.

→→She is .....a hard student...

3. As a child, I used to ride a bike.

→→I often ..rode a bike.......

1/ Our junior summer canps/ offer/ learners aged 10-17/ all over the world/ opportunity/ improve/ their English language skills \(\rightarrow\)______________________________________________________________________ 2/ We/ offer/ a full afternoon and evening social programme/ include/ a variety of sports activities/ visits/ local sites of interest \(\rightarrow\)______________________________________________________________________ 3/ On their first day/ students/ take/ a test/ ensure/...
Đọc tiếp

1/ Our junior summer canps/ offer/ learners aged 10-17/ all over the world/ opportunity/ improve/ their English language skills

\(\rightarrow\)______________________________________________________________________

2/ We/ offer/ a full afternoon and evening social programme/ include/ a variety of sports activities/ visits/ local sites of interest

\(\rightarrow\)______________________________________________________________________ 3/ On their first day/ students/ take/ a test/ ensure/ they/ placed/ at an appropriate level \(\rightarrow\)______________________________________________________________________ 4/ On arrival/ students/ also receive/ a welcome pack/ include/ information/ the course/ a free student bag \(\rightarrow\)______________________________________________________________________ 5/ Students/ have/ progress test in class/ every two weeks/ meet individually/ their teacher/ review/ their progress \(\rightarrow\)______________________________________________________________________ 6/ At the end/ the course/ students/ receive/ certificate/ as a record/ their English language studies \(\rightarrow\)______________________________________________________________________ MẤY BN ƠI GIÚP MK VS!!!!!!!!! MK SẼ TICK CHO!!!!!!!
1
10 tháng 3 2018

1/ Our junior summer canps/ offer/ learners aged 10-17/ all over the world/ opportunity/ improve/ their English language skills

→→_____Our junior summer canps offer learners aged 10-17 in all over the world for opportunity to improve their English language skills________________

2/ We/ offer/ a full afternoon and evening social programme/ include/ a variety of sports activities/ visits/ local sites of interest

→→___We offer a full afternoon and evening social programme to include a variety of sports activities visits local sites of interest__

3/ On their first day/ students/ take/ a test/ ensure/ they/ placed/ at an appropriate level

→→______On their first day, students took a test ensure, they were placed at an appropriate level _____

4/ On arrival/ students/ also receive/ a welcome pack/ include/ information/ the course/ a free student bag

→→________On arrival, students also receive a welcome pack to include information the course a free student bag _________

5/ Students/ have/ progress test in class/ every two weeks/ meet individually/ their teacher/ review/ their progress

→→____Students have progress test in class every two weeks to meet individually their teacher and review their progress _____

6/ At the end/ the course/ students/ receive/ certificate/ as a record/ their English language studies

→→____At the end of the course,students receive certificate as a record their English language studies _______

17 tháng 6 2020

1. I stand on a chair ......the light on the top of the cupboard

A. to reach B. reaches C. reached D. reaching

2. I don't like this film. i find it.....

A. bored B. boring C. fascinating D. relaxing

3. I'm looking for my new book. ..........book is about cinema

A. the B. a C. D. an

22 tháng 8 2017

Fill in the blanks with aa fewfew or aa littlelittle

1.She asks us_a few__questions.

2.I can speak_a little__French.

3___a few_people go to the meeting.

4.There are only_a few__books on the shelf.

5My fater is eating__a little_chicken soup.

6.They will have __a little_milkfor breakfast.

7.There are__a few__letters in the letter-box.

8.He has__a little__money and he will buy_a few___vegetables.

22 tháng 8 2017

Fill in the blanks with a few or a little

1.She asks us__a few__questions.

2.I can speak__a little__French.

3__A few__people go to the meeting.

4.There are only__a few___books on the shelf.

5My fater is eating__a little__chicken soup.

6.They will have __a little__milkfor breakfast.

7.There are__a few__letters in the letter-box.

8.He has__a little__money and he will buy__a little__vegetables.