Question

x²-y²-x-y=

a²-b²-a+b=

m+n+m²-n=

Answer 1

Ответ:

x²-y²-x-y=(x-y)*(x+y)-(x+y)=(x+y)*(x-y-1)

a²-b²-a+b=(a-b)*(a+b)-(a-b)=(a-b)*(a+b-1)

m+n+m²-n=m+m²

Answer 2

x²-y²-x-y=(x+y)•(x-y-1)

a²-b²-a+b=(a-b)•(a+b-1)

m+n+m²-n=m+m²