Question

(2x - y + 3) (2x - y - 3)using identities ​

Answer 1

Explanation:

(2x-y+3)(2x-y-3)=

4x²-2xy-6x-2xy+y²+3y+6x-3y-9=

4x²-4xy+y²-9=

(2x-y)²-9