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Calculati folosind metoda factorului comun:
437•13+12•437+25•563
DAU COROANA
Va rog!


Răspuns :

437•13+12•437+25•563
=437
•(13+12)+25•563
=437
•25+25•563
=10925+14075
=25000
437*(13+12)+25*563=
437*25+25*563=
25*(437+563)=25*1000=25000.