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Автор - Aaaaaa123321

(2а-11)(11+2а)-(2а-5)^2=2а-146
ПОМОГИТЕ ПЖЛ ДАЮ 20БАЛЛЛЛООООВВВ​

Ответ

Автор - plotnikoffmatvei

Ответ:

4а2-121-4а2+20а-25=2а-146

-121-25+20а=2а-146

-146+146=2а-20а

0=-18а

а=0

Пошаговое объяснение:

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