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ex 3 v rog clasa 5 help

Ex 3 V Rog Clasa 5 Help class=

Răspuns :

Răspuns:

a) (5^2-2^5÷2)÷3-1^2019=

(25-32÷2)÷3-1=(25-16)÷3-1=9÷3-1=3-1=2

b) (3^2×2^6-2^5×6)÷12-2^5=

(9×64-32×6)÷12-32=(576-192)÷12-32=384÷12-32=32-32=0

c) (7^4-7^3)÷(7^2-7)-2^3×5=

(2401-343)÷(49-7)-8×5=

( 2058÷42)-40=49-40=9

^ inseamna la puterea