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x^8-y^8!!!!! VA ROG REPPEDEEEEEE

Răspuns :

folosim diferenta de patrate
x^8-y^8=(x^4+y^4)(x^4-y^4)=
=(x^4+y^4)(x²+y²)(x²-y²)=
=(x^4+y^4)(x²+y²)(x+y)(x-y)