A) x^8-y^8=б) x^4-x^8=в) a^6-2^6=

Question

A) x^8-y^8=
б) x^4-x^8=
в) a^6-2^6=

Answer 1

А)(x^4-y^4)(x^4+y^4)=(x^2-y^2)(x^2+y^2)(x^4+y^4)=(x-y)(x+y)(x^2+y^2)(x^4+y^4)
б)x^4(1-x^4)=x^4(1-x^2)(1+x^2)=x^4(1-x)(1+x)(1+x^2)
в)(а^3-2^3)(a^3+2^3)=(a^3-8)(a^3+8)=третий не мог