Question

Factorise:

x⁴-y⁴



plz answer fast​

Answer 1

Answer:

Step-by-step explanation:

$x^4-y^4 = (x^2+y^2)(x^2-y^2) \\ = (x^2+y^2)(x+y)(x-y)$      

Answer 2

Step-by-step explanation:

We know that a^2- b^2 is equal to (a+b)(a-b).

x^4 - x^4

= (x^2)^2 - (y^2)^2

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

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