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МатематикаВопрос:
10) 31 ⋅ (2 + n) =
Ответ:
Используем распределительное свойство умножения: a ⋅ (b + c) = a ⋅ b + a ⋅ c
31 ⋅ (2 + n) = 31 ⋅ 2 + 31 ⋅ n = 62 + 31n
Ответ: 62 + 31n
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