作业帮(x^4n - 16) * (x^n - 2) * (x^2n + 4) * (x^n + 2)
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(x^4n - 16) * (x^n - 2) * (x^2n + 4) * (x^n + 2)
(x^4n - 16) * (x^n - 2) * (x^2n + 4) * (x^n + 2)
(x^4n - 16) * (x^n - 2) * (x^2n + 4) * (x^n + 2)
(x^4n - 16) * (x^n - 2) * (x^2n + 4) * (x^n + 2)
=(x^4n - 16) * (x^2n + 4) * (x^n + 2)* (x^n - 2)
=(x^4n-16)*(x^2n+4)(x^2n-4)
=(x^4n-16)*(x^4n-16)
=(x^4n-16)^2
=x^8n-32x^4n+256
(x^4n+16)(x^n-2)(x^2n+4)(x^n+2)=
(x^4n - 16) * (x^n - 2) * (x^2n + 4) * (x^n + 2)
(x^2n-2)(x^8n+16)(x^2n+2)(x^4n+4)
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