Ответ:
Объяснение:
1. (a-7)(a+7)
2. (c-1.5)(c+1.5)
3. (8/9-x)(8/9+x)
4. (z-13/14)(z+13/14)
5. (5x+6)(5x-6)
6. (0,8-1/3z)(0.8+1/3z)
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Ответ:
Объяснение:
1. (a-7)(a+7)
2. (c-1.5)(c+1.5)
3. (8/9-x)(8/9+x)
4. (z-13/14)(z+13/14)
5. (5x+6)(5x-6)
6. (0,8-1/3z)(0.8+1/3z)