Question

4 - x2 - y2 - 2xy is equal to
(a) (2 - x + y)(2 + x - y)
(c) (2 + x - y)(2 + x + y)
(6)(2 + x + y)(2 - x - y)
(d) (2 - x + y)(2 - x - y)​

Answer 1

Answer:

(2+x+y)(2-x-y)

Step-by-step explanation:

4-x²-y²-2xy

=2²-(x²+y²+2xy)

=2²-(x+y)²

=(2+x+y)(2-x-y)