Предмет: Алгебра, автор: xleban

Упростите выражение:
а)3а²b·(-a³b)
б)(2x²y)³

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Автор ответа: lidochkaarustam
2
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Choose the correct answer, a, b, c, or d.
1 We ___ American.
a not b not are c aren’t d isn’t
2 ___ this magazine before?
a Do you read b Are you going to read c Are you reading d Have you read
3 This is our new teacher. ___ name is Mark.
a His b Her c Its d He
4 He ___ the newspaper every day.
a read b reads c doesn’t reads d don’t reads
5 Is Mont Blanc ___ mountain in Europe?
a the higher b the most highest c the more high d the highest
6 British people ___ tea with milk.
a to drink b drink c drinks d are drink
7 ___ you like Chinese food?
a Do b Does c Are d Is
8 It’s my ___ computer.
a parents b parents’ c parent d parent’s
9 Could we ___ the bill, please?
a take b want c have d ask
10 The people ___ in room 12.
a is b am c are d be
11 It’s ten ___ seven.
a to b for c at d in
12 I ___ to classical music.
a never to listen b listen never c never listen d don’t never listen
13 Would you like ___ coffee?
a other b another c some other d more one
14 I haven’t ___ this photo before.
a see b saw c to see d seen
15 I can’t see. Where are my ___?
a glasses b stamps c keys d lipsticks
16 I like ___ in the morning.
a that I work b working c work d to be work
17 Thanks for ___.
a all b the all c everything d all things
18 ‘Was Debussy from France?’ ‘Yes, ___.’
a he were b was c there were d he was
19 I’m Italian. ___ family are from Venice.
a Our b My c Her d Me
20 What ___ do tomorrow?
a are you going b you going c are you going to d do you go to
21 Can I pay ___ credit card?
a by b in c on d with
22 This isn’t my money. It’s ___.
a to you b the yours c your d yours
23 Tonight’s dinner is ___ than last night’s.
a more good b gooder c better d more better
24 They didn’t ___ the tickets.
a booking b booked c to book d book
25 They’re ___.
a bigs cars b cars bigs c big cars d bigs car
26 ___ the time?
a What’s b What is it c What d What it is
27 She ___ to the gym every day.
a gets b goes c has d does
28 I ___ do my homework last night.
a not could b didn’t can c couldn’t d can’t
29 There ___ telephone in my hotel room.
a wasn’t a b weren’t a c weren’t any d wasn’t some
30 He ___ playing the piano.
a are b does c is d has
31 He ___ jeans.
a doesn’t usually wear b isn’t usually wearing c wears usually d doesn’t wear usually
32 I ___ my new job last week.
a have begun b began c am begin d begin
33 There isn’t ___ pasta in the kitchen.
a some b many c a d any
34 She ___ to cook for her boyfriend.
a isn’t going b isn’t go c aren’t going d doesn’t go
35 The elephant is ___ land animal in the world.
a the bigger b the most big c biggest d the biggest
36 ___ yesterday?
a You studied b Did you studied c Did you study d Studied you
37 James would like ___ basketball.
a playing b to play c play d to playing
38 I always ___.
a work hard b hard work c hardly work d work hardly
39 We ___ to Canada.
a haven’t be b hasn’t been c hasn’t be d haven’t been
40 He ___ follow instructions.
a doesn’t can b not can c isn’t can d can’t
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