Предмет: Алгебра, автор: fygrgyvrv464

помогите пожалуйста быстрее алгебра

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Ответы

Автор ответа: admeri

а) 21x³y²*(-4/7x)

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производим положительное и отрицательное значений отрицательно (+)*(-)=(-)

- 21x³y²*4/7x

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сокращаем число на 7

- 3x³y²*4x

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вычисляем произведение

- 12x⁴y²

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