Odpowiedzi

2009-11-08T11:33:12+01:00
(8x3 -34x2 *y+3*2x*y2 -y3 - 8x3 +3*4x2 +3*2x*y2 +y3 - 16x2 -9y2 +12x²y+y³+20x²+4xy =