matematykaszkolna.pl
kuba: (3x-1)2-27(x+3)3+3(x+2)2
25 mar 22:47
xxxx: 9x2-6x+1-27(x3+6x+27)+3(x2+4x+4)=9x2-6x+1-27x3+162x+729+3x2+12x+12=12x2+166x-27x3+742 emotikonka
26 mar 18:51