Question

CALCULEAZA a)5^140/25^70+8^32/16^24+100^25/10^48-2^2*5^2=

b)(7^11)^13*(7^13)^7/(7^18)^13*7^2+1^2017-2^1*5^2= va rog frumos sa ma ajutati repede !

Answer 1

a) 5^140/25^70 + 8^32/16^24 + 100^25/10^48 - 2^2 × 5^2 = 5^140/(5^2)^70 + (2^3)^32/(2^4)^24 + (10^2)^25/10^48 - 4 × 25 = 5^140/5^140 + 2^96/2^96 + 10^50/10^48 - 100 = 1 + 1 + 10^2 - 100 = 2 + 100 - 100 = 2

b) [(7^11)^13 × (7^13)^7] / (7^18)^13 × 7^2 + 1^2017 - 2^1 × 5^2 = (7^143 × 7^91)/7^234 × 49 + 1 - 2 × 25 = 7^234/7^234 × 49 + 1 - 50 = 1 × 49 + 1 - 50 = 50 - 50 = 0