Дам 20Б
Разложите на множители a(2 + b) + b + 2
Выберите один ответ:
1. (2 + b)(a - 1)
2. (b + 2)a
3. (b + 2)(a + 1)
4. (2 + b)(1 - a)



Разложите на множители a(b - c) - (c - b)
Выберите один ответ:
1. (a - 1)(b - c)
2. (a + 1)(c - b)
3. (a - 1)(c - b)
4. (a + 1)(b - c)
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