Question

Factorise ( x² - y² ) ² - ( xy) ²​

Answer 1

Answer:

( x² - y² )² - ( xy )²

x⁴ - y⁴ - x²y²

I hope it helps

Answer 2

Answer:

(x²-y²+xy)(x²-y²-xy)

Step-by-step explanation:

as we know a²-b²=(a+b)(a-b)

(x²-y²)²-(xy)²=(x²-y²-xy)(x²-y²+xy)