Odpowiedzi

2010-01-25T21:52:53+01:00
A) w(x) = x2-2x-xy+2y=
x(x-2)-y(x-2)=
(x-2)(x-y)

b)w(a)= a(a2-1)=
a(a-1)(a+1)

c)w(a)= (a2-5)=
(a-pierwiastek z 5)(a + pierwiastek z 5 )