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calculați dînd factor comun:2017×24+77×2017-2017=

Răspuns :

2017×24+77×2017-2017= 2017(24 + 77 - 1) = 2017 x 100 = 201700
2017×24+77×2017-2017×1=
=2017×(24+77-1)
=2017×100
=201700