Question

ДАЮ 36 БАЛЛОВ,СРОЧНО

Answer 1

(5a^9c^5)^4*(9a^4c^5)^0/(625a^5c^4)^2=625a^36c^20/625*625a^10c^8=
$\frac{1}{625} {a}^{26} {c}^{12}$