Предмет: Математика, автор: asda5asdasd4s

Решите пожалуйста 7 класс ​

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Автор ответа: Аноним
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\displaystyle \tt 3a^2-4ax\cdot\frac{1}{4}a^2-4a+5a^3x=3a^2-axa^2-4a+5a^3x=\\\\ \displaystyle \tt =3a^2-a^3x-4a+5a^3x=3a^2+4a^3x-4a

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