Question

125 la puterea 15 : ( 625 la puterea 2 ori 5 la puterea 3 ) totul la puterea 4

Answer 1

$125^{15}:(625^2*5^3)^4=(5^3)^{15}:[(5^4)^2*5^3)]^4=5^{45}:(5^8*5^3)^4=5^{45}:(5^{11})^4=5^{45}:5^{44}=5^1=5$