Предмет: Алгебра, автор: aqrtyjg

Упростите выражение (а+3)^2-2а(3-4а) и найдите значение при а=-одна третья

Ответы

Автор ответа: wantata

0

а^2 + 6a + 9 - 6a + 8a^2
9a^2 + 9 = 1
Ответ: 1

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