Предмет: Алгебра, автор: danaavronin

срочно!!!!!!!!!!!!!!!!!!!!!!!​

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Автор ответа: RayMiller
2

Объяснение:

4х²–4ху+у²–8х+4у–3=(2х–у)²–4(2х–у)–3

так как 2х–у=5 по условию, то

25–4*5–3=25–23=2

ответ: 2

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