Question

Помогите пожалуйста:

Answer 1

25^-7 = (5²)^-7
125^-6 = (5³)^-6
_____________
5^0*(5²)^-7=1/5¹⁴
5¹*(5³)^-6=1/5^17
_____________
$\frac{1}{5 {}^{14} } \div \frac{1}{5 {}^{17} } = \frac{1}{5 {}^{14} } \times \frac{5 {}^{17} }{1} = \frac{5 {}^{17} }{5 {}^{14} } = \\ = 5 {}^{3} = 125$
Ответ: 125