Перемножь: (−2−a)(b+1).
1. a+ab−2−2b
2. a+2+2b+ab
3. +2b−ab−a+2
4. −a−2−2b−ab
1. a+ab−2−2b
2. a+2+2b+ab
3. +2b−ab−a+2
4. −a−2−2b−ab
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Ответ:
Объяснение:
4.-а-2-2b-ab