Предмет: Математика, автор: atakisizadeemel

помогите пожалуйста номер 2

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Автор ответа: lhelpyou

Ответ:

А)х4-х3-2х2

Ты раскрываешь скобки, естественно перемножаешь и получается ответ А).

Автор ответа: papagenius

Ответ:

Пошаговое объяснение:

x² · (x + 1) · (x - 2) = x² · (x² - 2x + x - 2) = x² · (x² - x - 2) = x⁴ - x³ - 2x²

Ответ: А.

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Предмет: Английский язык, автор: Elena17

Complete the sentences with the right words and expressions.

area code,country code,cash machine,advantage,PIN code,late,borrow,message,cash,passengers,information desk,check in

1.If you want to phone London,you need to know the_____________code of this city and the_________of the UK.

2.Gredit cards are not accepted in every shop.So you should always have some______________________on you.

3.____________are recommended to arrive at the airport two hours in advance.

4.If nobody answers your phone call,you can leave a___________ on the answering machine.

5.When you_______money from somebody,don't forget to return it as soon as you can.

6.You can get some money from the____________.Do you remember your_______________code?

7.The______________________of the electronic ticket is that you can't lose it.

8.You have to_________before you can go to the security check.

9.If you have any questions at the airport,go to the_______________.

10.Our flight was_________,so we had enough time for some shopping.

Chose the right answer.

1.Your flight is...time.

a) on b) to c)at

2.We arrived ... London two days ago.

a)at b)in c)to

3.Don't borrow money...your friend.He hasn't got much.

a)from b)to c)with

4.I've lent my pen...Vera.

a)to b)from c)at

5.I caught a cold because...my friends.They hid my jacket and I had to go out without one.

a)off b) on c)of

6.My father smokes,but he wants to get rid... this bad habit.

a)with b)of c)on

1.Mum learn to drive a car.Her new job is in another town.

a)may b)must c) has to

2.Passengers...carry any sharp objects in their hand baggage.

a)can b)mustn't c)don't have to

3. You...dial the area code before this number.

a)can b)may c)must

4.I'm busy today.Who... go to the post office instead of me?

a)can b)need to c)must

5... I introduce myself? I'm Edward Steel.

a) May b) Do ... have to c) Must

6.If the picks up the phone,you... tell her anything.She'll be upset.

a) can't b) don't have to c) mustn't

7.Phone me tomorrow. Hopefully,I...to help you.

a) can b) will be able c) may

8.Will I have to come tomorrow?-No,you... .

a) mustn't b) don't have to c) needn't

9.Caroline...learn English.She lived in England for five years when she was a teenager.

a) mustn't b) can't c) doesn't have to

Read the story and mark these statements true,false or not stated(if there isn't enough information in the text).

помогите пожалуйста номер 2​

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помогите пожалуйста номер 2