Предмет: Алгебра, автор: galitskiji

Спростити вираз (у+2)²-(у-2)(у+2) і знайти його значення при у=1. 1/2

Ответы

Автор ответа: Kewsowa

Відповідь:(y+2)²-(y-2)(y+2) якщо y=1

y²+4y+4-y²-4

4y+8

4*1+1/2+8=25/2=12,5 ( при умові якщо одна ціла одна друга

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