Question

What should be subtracted from x^2 + y^2 – 2xy to get x^2 + y^2?
I'll mark Brainliest if u answer correctly

Answer 1

Answer:

x^2+y^2-2xy

use the perfect square formaula a^2 - 2ab + b^2=(a - b) ^2 where a = x and b = y

( x - y ) ^ 2