Question

(x²y²- 4) (x²y²+ 4)​

Answer 1

Answer:

(x²y²)²-(4)²

x⁴y⁴-16

#Secretgirl✌️

Answer 2

Answer:

(xy)^4-16

Step-by-step explanation:

(x²y²- 4) (x²y²+ 4)​

((xy)^2- 4) ((xy)^2+ 4)​

using identity

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

(xy)^4-(4)^2

(xy)^4-16