Odpowiedzi

2009-11-17T16:00:47+01:00
(x-2)² + (x+2)-(x+3)² - 1= x² - 2x+4+ x+2 - x² + 6x - 9 -1= 4x -4
2009-11-17T16:34:55+01:00
(x-2)do kwadratu(x+2)-(x+3)do kwadratu-1= -4x+2+8=-4x+10
2009-11-17T17:22:28+01:00
(x-2)² + (x+2)-(x+3)² - 1= x² - 2x+4+ x+2 - x² + 6x - 9 -1= 4x -4