Предмет: Математика, автор: дундук102

Почему 1-4 ⋅ (-2)=9?

Ответы

Автор ответа: admenpop

0

1 - 4 * (-2) = 9

4 * (-2) = -8

1 - (-8)= 1+8 = 9

Автор ответа: babushkaroma

1

сперва идёт умножение:
$4 \times ( - 2) = - 8 \\$
дальше:
$1 - ( - 8)$
минус на минус даст плюс
$1 + 8 = 9$

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