Question

(x+y)^2+(x+y)^2 please ​

Answer 1

Step-by-step explanation:

(x+y)² +(x+y)²

= x²+y² +2xy + x²+y² +2xy

= 2x²+2y²+4xy

Answer 2

Answer:

Step-by-step explanation:

x2+y2+2xy + x2+ y2+ 2xy =0

2x2+2y2+4xy=0

2(x2+y2+2xy) =0

x2+y2+2xy = 0