Question

Simplify:(2x+y)(2x-y)-(2x+y)² by using identity.

step by step.... ​

Answer 1

Answer:

use (a+b)(a-b) identity

and (a+b)^2 identity

u can do it

Answer 2

Answer:

$(2x + y)(2x - y) - (2x + y) { }^{2} \\ {2x}^{2} - {y}^{2} - ( {2x}^{2} + {y}^{2} + 2 \times 2x \times y) \\ {2x }^{2} - {y}^{2} - ( {2x}^{2} + {y}^{2} + 4xy) \\ {2x}^{2} - {y}^{2} - {2x}^{2} - {y}^{2} - 4xy \\ - 2y {}^{2} - 4xy$

THANK YOU