Предмет: Математика, автор: anonim007nasteaanoni

143-15 xy, если x=-12, y=0

Ответы

Автор ответа: Аноним

Ответ:

143 Пошаговое объяснение:

1. Запишем

$143 - 15\cdot x\cdot y$

2. Подставим значение у

$143-15\cdot x\cdot0$

3. Заметим в произведении множитель ноль, а · 0 = 0

$143-15\cdot \fbox{\b{x\cdot0}}$

$143-15\cdot0$

4. Заменим произведение 15 · 0 = 0

$143-0$

5. Если отнимем 0 то ничего не изменится

$143$

ОТВЕТ

$143$

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