Odpowiedzi

2009-11-04T17:05:49+01:00
Oblicz:
2(x-1/2)(x+3) =(2 x -1)(x+3)=2x² +6x -x -3 =2x² +5x -3
2009-11-04T17:06:13+01:00
2(x-½)(x+3) = 2(x2 - 1½) = 2x2 - 3

x2 - iks kwadrat
2009-11-04T17:07:12+01:00
2(x-1/2)(x+3) = (2x-1)(x+3) = 2x²+6x-x-3 = 2x²+5x-3