Rozwiaz:
2a(a+ab-b)=
2x2y(x-y+xy)=
PROSZE O POMOC!
-3(x-y2)=-3x+3y2
2a(a+ab-b)=2a2+2a2b-2ab
-1x2+2xy-3x
2x2y(x-y+xy)=4x2y-4xy2+4x2y2
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-3(x-y2)=-3x+3y2
2a(a+ab-b)=2a2+2a2b-2ab
-1x2+2xy-3x
2x2y(x-y+xy)=4x2y-4xy2+4x2y2