Question

Rozłóż wielomian na czynniki:

W(x,y)=x^2-4xy+y^2

W(x,y)=x^2-3xy+2y^2

Answer 1

 

a)

(x-y)^2 - 2xy

= x^2  -2xy + y^2 - 2xy = x^2 -4xy +y^2

b)

(x-y)^2 -xy + y^2

= x^2 -2xy + y^2 - xy + y^2 = x^2-3xy +2y^2