Предмет: Алгебра, автор: Аноним

Помогите с 1, 2 и 3 номером пожалуйста

Приложения:

Ответы

Автор ответа: авпарнар

2m^2y-2my^3 вот брат или сестра

Автор ответа: авпарнар

2a-3ab

Автор ответа: авпарнар

ответ б

Автор ответа: авпарнар

7x-28y

Автор ответа: авпарнар

9k^5-9k^7

Автор ответа: авпарнар

x=165

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