Question

factorise [2x-y] - [2x+y]​

Answer 1

Step-by-step explanation:

$(2x - y) - (2x + y) = 2x - y - 2x - y \\ = - 2y$

Answer 2

Answer:

(2x-y)

$(2x - y) {}^{2} = (2x - y)(2x + y)$

Step-by-step explanation:

$(2x - y) {}^{2}$