Odpowiedzi

2010-03-10T18:45:50+01:00
2x(x-5)-3(x²-2x)+(x-2)x=

2x² - 10x - 3x² + 6x + x² - 2x =

-6x


2010-03-10T18:46:50+01:00
2x kwadrat-10x-3xkwadrat+6x+x kwadrat - 2x= - 6x
2010-03-10T18:47:26+01:00
2x(x-5)-3(x²-2x)+(x-2)x=2x²-10x-3x²+6x+x²-2x= -6x