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KariBia
a fost răspuns

calculați folosind factorul comun : 2017 + 2017 ×2017+2018 sau coroana !!

Răspuns :

Maria634
2017 (1+1×1+2018)
2017 (2+2018)
2017×2020=
=4074340
Crivineantuviorel
2017 + 2017 ×2017+2018 = 2017 + 2017 ×2017+2017 +1=
2017(1+2017)+(2017+1)=
=(2017+1)(2017+1)=(2018)^2

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