Odpowiedzi

2010-02-03T19:23:14+01:00
A) = 2x2-10x-3x2+6x+x2-2x=-6x
b) =a2+ab+ac-ab+b2-bc-ac+bc+c2=a2+b2+c2
c) = x3+2x2+x+2x3-4x2+3= 3x3-2x2+x+3
d) = ?
12 3 12