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1. Dati factor comun in urmatoarele expresii :
50a-25a=
18a-27b=
18x-12z+24t=


Răspuns :

[tex]50a - 25a = 25a(2 - 1)[/tex]

[tex]18a - 27b = 9(2a - 3b)[/tex]

[tex]18x - 12z + 24t = 6(3x - 2z + 4t)[/tex]