Răspuns:
Explicație pas cu pas:
8^8 = (2^3)^8 = 2^24 = (2^12)^2 patrat perfect
8^8 = (2^3)^8 = 2^24 = (2^8)^3 cub perfect
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27^10 = (3^3)^10 = (3^10)^3 cub perfect
27^10 = (3^3)^10 = 3^30 = (3^15)^2 patrat perfect
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25^15 = (5^2)^15 = (5^15)^2 patrat perfect
25^15 = (5^2)^15 = 5^30 = (5^10)^3 cub perfect
__________
4^9 = (2^2)^9 = (2^9)^2 patrat perfect
4^9 = (2^2)^9 = 2^18 = (2^6)^3 cub perfect
