Предмет: Алгебра, автор: vrodiveronika

спростіть вираз 19в²+(с-3в) (с+3в) будь ласка​

Ответы

Автор ответа: larisaserova53
0

Ответ:

Смотри решение на фото...

Приложения:
Автор ответа: parus77
0

Ответ:

Объяснение:(а+в)(а-в)=а²-в² применяем эту формулу

19в²+(с-3в) (с+3в) =19в²+ с² - 9в²=19в² -9в² +с²=10в² + с²

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zlyubasilSamg
zlyubasilSamg
15.10.2015
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