Question

Daca n=3la puterea 2 -10:2,5 efectuati n la puterea 7 ×n ÷n la puterea 5 va rog ajutor!

Answer 1

$\it n = 3^2-10:2,5=9-4=5\ \ \ \ \ (*)\\ \\ n^7\cdot n:n^5=n^8:n^5=n^3\ \stackrel{(*)}{=}\ 5^3=125$