Question

Please give this in steps

Answer 1

(x - y)²

Explanation:

Given

(x + y)² - 4xy

= x² + 2xy + y² - 4xy

= x² - 2xy + y²

= (x - y)²

Answer 2

`{(x + y)}^(2) - 4xy = {x}^(2) + 2xy + {y}^(2) - 4xy \\ = {x}^(2) - 2xy + {y}^(2) \\ = {(x - y)}^(2) \\ thank \: you`