September 2018 1 22 Report

Zapisz w jak naprostrzej postaci :

(x-2)-(2-x)=

(a+b)+(2a-b)-(a-2b)=

(3x-y+1)-(x+y)+(y-x)=

-(2a[kwadrat]-3ab)-(2b-3a[kwadrat])+(-ab-b)=

(4x[kwadrat]-3x)-(x+0,1x[kwadrat])-(x[kwadrat]-0,1x) =


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