356 Вынесите общий множитель за скобки по образцу: a) 45-13-45-81=45- (13-81); б) 49-57-49-570; г) (-53)-48-(-53)-59; e) -53-48-57-48; в) 58-64-99.64; д) (-45) 12 + 95. (-45); ж) -45-13-45.27.

Ответ: смотри решение

1. а) 45 ⋅ 13 - 45 ⋅ 81 = 45 ⋅ (13 - 81)
2. б) 49 ⋅ 57 - 49 ⋅ 570 = 49 ⋅ (57 - 570)
3. в) 58 ⋅ 64 - 99 ⋅ 64 = 64 ⋅ (58 - 99)
4. г) (-53) ⋅ 48 - (-53) ⋅ 59 = (-53) ⋅ (48 - 59)
5. д) (-45) ⋅ 12 + 95 ⋅ (-45) = (-45) ⋅ (12 + 95)
6. е) -53 ⋅ 48 - 57 ⋅ 48 = -48 ⋅ (53 + 57)
7. ж) -45 ⋅ 13 - 45 ⋅ 27 = -45 ⋅ (13 + 27)

Ответ: смотри решение