Odpowiedzi

2010-02-18T14:08:57+01:00
3(5x-2y-2)=15x-6y-6
(4x-7y-7)(-2)=-8x+14y+14
2010-02-18T14:09:27+01:00
3(5x-2y-2)=15x-6y-6
(4x-7y-7)(-2)=-8x+14y+14
2010-02-18T14:29:45+01:00
3(5x-2y-2)=15x-6y-6
(4x-7y-7)(-2)=-4x+14y+14