Предмет: Математика, автор: chaleksv

( 9 + 4 a^2 )^2 возвести в квадрат

Ответы

Автор ответа: 111118290

0

Ответ:

81+72а²+16а⁴

Пошаговое объяснение:

По формуле (а+б) ²=а²+2аб+б²

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