Question

What is the value of (x+y-4)^2 = ?

Answer 1

Answer:

x-y=2

And, x+y=4

So, by adding the equations we get,

(x-y)+(x+y)=2+4

2x=6

x=3

so,first equation becomes : 3-y=2

so, y=1

Answer 2

Answer:

x^2+y^2 +16 +2xy -8y -8X by using identity

Step-by-step explanation: