Question

(e) (x - y)2 – (x + y)2​

Answer 1

Answer:

x²-y²

Step-by-step explanation:

this is a formula was that x-y _ x+y

Answer 2

Answer:

-4xy

Step-by-step explanation:

(x2 -2xy + y2) - (x2+2xy+y2)

= x2 -2xy + y2 - x2 - 2xy - y2

= -4xy