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Calculati: (3^5)^4:3^18x3^5-3^7= VA ROG FRUMOS, AJUTATI-MA!

Răspuns :

(3^5)^4:3^18x3^5-3^7= 
= 3^20:3^18*3^5-3^7 = 
= 3^7 - 3^7 = 0
(3⁵)⁴ : 3¹⁸3⁵-3⁷ = 

= 3²⁰ : 3¹⁸ 3⁵-3⁷

= 3²3⁵ - 3⁷ 

= 3⁷ - 3⁷

= 0