Question

factorise x power 8 minus ypower 8

Answer 1

see in photo full explanation

Answer 2

x8 - y8

= (x4)2 - (y4)2

= (x4 - y4) (x4 + y4)

= (x2)2 - (y2)2 (x4 + y4)

= (x2 - y2) (x2 + y2) (x4 + y4)

= (x -y) (x + y) (x2 + y2) (x4 + y4)

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