Răspuns:
^=la puterea
512+3=515
515:5=103
(103^2018+103^2020)÷5
(103^2018+103^2019+1)÷5
(103^2018+103^2019×103^1)÷5
(1×103^2018+103^2019×103^1)÷5
Facem paranteza si vedem ca il avem factor comun pe 103.Facem:
(1+2018+2019)-103=4038-103=3835
In final avem:
3935÷5=787
Sper ca te-am ajutat! :)
