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Calculați cu factor comun exercitiul :
2011*3211-3211+2010*1789


Răspuns :


=3211(2011-1)+2010*1789

=3211*2010+2010*1789

=2010(3211+1789)

=2010*5000

=10050000

2011x (3111-3211) x1789=2011x0x 1789= 0x1789= 0