Ответ: 3: 2a/a+c; 4: 3a+8b; 5: 15mn^3
3.:
3.1: a+b+a-b/a+c
3.2: 2a/a+c
4:
4.1: (3a+8b)^2/3a+8b
4.2: 3a+8b
5:
5.1:3m*5n^3
5.2: 15mn^3
Объяснение:
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Ответ: 3: 2a/a+c; 4: 3a+8b; 5: 15mn^3
3.:
3.1: a+b+a-b/a+c
3.2: 2a/a+c
4:
4.1: (3a+8b)^2/3a+8b
4.2: 3a+8b
5:
5.1:3m*5n^3
5.2: 15mn^3
Объяснение: