Odpowiedzi

2010-01-19T10:51:19+01:00
1) x^4+8x^3+16x^2=x^2(x^2+8x+16)=x^2(x+4)^2=x^2(x+4)(x+4)
2)25x^2(x-2)-9(x-2)=(x-2)(25x^2-9)=(x-2)(5x-3)(5x+3)