Question

1-4ху^2 - 4ху-у^2=  решите пожалуйста

Answer 1

1-4ху^2 - 4ху-у^2=1-y^2-4xy(y+1)=(1-y)(1+y)-4xy(1+y)=(1+y)(1-y-4xy)

Answer 2

1-4ху^2 - 4ху-у^2=1-y^2-4xy(y+1)=(1-y)(1+y)-4xy(1+y)=(1+y)(1-y-4xy)