Предмет: Алгебра, автор: domfreefire111

N° Упростите выражение: (5х-4)(5х+4)+16.

№2 Разложите на множители: а) 81-х4; б) 2ав+10в+6а+30.

№3 Решите уравнение: (х-7)2+3=(х-2)(х+2).

Ответы

Автор ответа: pinkicat0217
1

Ответ:

#1

5х² - 4² + 16

5х² - 16 +16

5х²

(уверена 50/50)

#2

а) (20,5 - х) 4

б) (а + 5) 2в + (а + 5) 6

(уверена на 99%)

#3 я не знаю :(

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It the Old Circus named after Oleg Popov or Yuri Nikulin?
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По тексту :
There is no need to rack one's brains about outings in Moscow as the cultural life is intense. A lot of famous theatres and galleries are there. The Bolshoi and the Maly Theatres are in the centre of Moscow in Teatralnaya Square. Just round the corner there is the Moscow Art Theatre (the MkhAT). The Operetta Theatre is a two-minute walk from the Teatralnaya Square as well. It's incredible, but there are about ninety theatres in Moscow (apart from the different studios and theatrical societies), more than seventy museums and a great number of exhibitions of all kinds.
In spite of the wide choice, it is not easy to recommend something to a foreigner. Tastes differ, you know. But even if you have no idea of the person's interests, there are some places to suggest. They may not be at the top of the list of Moscow entertainment, but they promise great enjoyment for a person of any age and background.
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These places of public entertainment are different from other more popular attractions. They seem to be more real and less commercial. It's quite possible that it's this kind of entertainment that attracts people to Moscow.
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