Răspuns:
Explicație pas cu pas:
125^5 = (5^3)^5 = 5^15
25^7 = (5^2)^7 = 5^14
16^3 = (2^4)^3 = 2^12
4^2 = (2^2)^2 = 2^4
8^5 = (2^3)^5 = 2^15
(7^5)^10 = 7^50
(7^2)^25 = 7^50
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5^15 : 5^14 + 3*(2^12*2^4 : 2^15 + 7^50 : 7^50)
= 5 + 3*(2^16 : 2^15 + 1)
= 5 + 3*(2 + 1)
= 5 + 3*3
= 5 + 9
= 14