Question

Please give the answer with process pls explain the sum pls:-

EXPAND:
(2+xy)(2-xy) ​

Answer 1

Answer:

(2+xy)(2-xy)= (a+b)(a-b)=a^2-b^2

therefore, (2+xy)(2-xy)= (2)^2-(xy)^2= 4 - x^2.y^2

Answer 2

Answer:

Given (2+xy)(2-xy)

We need use one formula here

i.e., (a+b)(a-b)=a^2-b^2

So here a=2,b=xy

So a^2-b^2

=2^2-(xy)^2

=4-x^2.y^2

=4-(xy)^2

I hope u understand this