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calculati , dand mai intai factor comun partial : 2003+2004x2003-2005x2002

Răspuns :

2003+2004x2003-2005x2002=
=2003(1+2004)-2005x2002=
=2003x2005-2005x2002=
=2005x(2003-2002)=
=2005x1=
=2005