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socate factoru comun
a)105+105x6+105x3
b)54x15x9+54x15-54x50


Răspuns :

a) 105(1+6+3)=105*10=1050
b) 54*5(3*9+3-10)=270*20=5400
a) 105(1+6+3)= 105x10
b) 54x5(3x9+3-10)

Succes! Si astept coronita!