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(12x^2-4x):(-2x)+2(x-1)=

Răspuns :

(12x^2-4x):(-2x)+2(x-1) =

= 12x^2-4x/-2x+2x-1 =

= 2x(6x-2)/-2x +2x-2 =

=-(6x-2)+2x-2 = -6x+2+2x-2 =-4x