Question

x = -1
please solve it if you know how to solve it then please. Correct answer will be Mark as brainlist .

Find the value​

Answer 1

x² + y² - 2xy

(-1)² + y² - 2(-1)y

y² + 2y + 1

y = {(-b) ± √(b² - 4ac)}/2a

y = {-2 ± √(4 - 4)}/2

y = -2/2

y = -1

PLEASE MARK AS BRAINLIEST.

:-)

Answer 2

Answer:

(x-y)^2

Step-by-step explanation:

Use the perfect square formula, a^{2}-2ab+b^{2}=(a-b)^{2}, where a=x and b=y.