Question

Using proper identities find the following products
1. (2x-y+3) (2x-y-3)
2. (3x+y-5) (3x-y-5) ​

Answer 1

Answer:

[4x]2+y2-4xy+9

Step-by-step explanation:

[[2x-y]+3] [[2x-y]-3]

applying [a+b] [a-b]=a2-b2

[2x-y]2-[3]2

[4x]2+y2-4xy-9

Answer 2

answers are as follows in the photograph

HOPE IT HELPS ☺️