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МатематикаВопрос:
9) 10 ⋅ (2q - 3) =
Ответ:
Используем распределительное свойство умножения: a ⋅ (b - c) = a ⋅ b - a ⋅ c
10 ⋅ (2q - 3) = 10 ⋅ 2q - 10 ⋅ 3 = 20q - 30
Ответ: 20q - 30
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- 13) 12 ⋅ (7 - 2a) =
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