Question

Factorise xpower8 - y power8.

Answer 1

here have it mate all yours

Answer 2

      x^8 - y^8
=   (x^4 + y^4)(x^4 - y^4)
=   (x^4 + y^4)(x^2 + y^4)(x^2 - y^2)
=   (x^4 + y^4)(x^2 + y^2)(x - y)(x - y)