Question

Calculati
8^7:4^10×2^17
(5^10×25)^2:5^40
^ = la putere

Answer 1

(2^3)^7:(2^2)^10x2^17=2^21:2^20x2^17=2^21-20x2^17=2^1x2^17=2^1+17=2^18. (5^10x5^2)^2:5^40=(5^12)^2:5^40=5^144:5^40=5^104