Question

Срочно надо ДАЮ 25 баллов
$\frac{5 {}^{4} \times } {9 {}^{2} \times } \frac{(5 \times 9) {}^{3} }{5 {}^{7} }$
5^4×(5×9)^3÷9^2×5^7

Answer 1

$\frac{5 {}^{4}(5 \times 9) {}^{3} }{9 {}^{2} \times 5 {}^{7} } = \frac{(5 \times 9) {}^{3} }{9 {}^{2} \times 5 {}^{3} } = \frac{125 \times 729}{9 {}^{2} \times 5 {}^{3} } = \frac{5 {}^{3} \times 9 {}^{3} }{9 {}^{2} \times 5 {}^{3} } = 9$