搜搜考试网（x^2-xy+y^2)^2(x^2+xy+y^2)^2(x-y)^2(x+y)^2,其中x=2,y=1
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（x^2-xy+y^2)^2(x^2+xy+y^2)^2(x-y)^2(x+y)^2,其中x=2,y=1
(a+b)(a^4+b^4)(a-b)(a^2+b^2)其中a=1,b=-2
(a+b)(a^4+b^4)(a-b)(a^2+b^2)其中a=1,b=-2
（x^2-xy+y^2)^2(x^2+xy+y^2)^2(x-y)^2(x+y)^2
=[(x+y)^2x^2-xy+y^2)^2][(x-y)^2(x^2+xy+y^2)^2]
=(x^3+y^3)^2(x^3-y^3)^2
=(x^6-y^6)^2
=(2^6-1^6)^2
=63^2
=3969
(a+b)(a^4+b^4)(a-b)(a^2+b^2)
=(a+b)(a-b)(a^2+b^2)(a^4+b^4)
=(a^2-b^2)(a^2+b^2)(a^4+b^4)
=a^8-b^8
=1^8-(-2)^8
=1-256
=-255
=[(x+y)^2x^2-xy+y^2)^2][(x-y)^2(x^2+xy+y^2)^2]
=(x^3+y^3)^2(x^3-y^3)^2
=(x^6-y^6)^2
=(2^6-1^6)^2
=63^2
=3969
(a+b)(a^4+b^4)(a-b)(a^2+b^2)
=(a+b)(a-b)(a^2+b^2)(a^4+b^4)
=(a^2-b^2)(a^2+b^2)(a^4+b^4)
=a^8-b^8
=1^8-(-2)^8
=1-256
=-255
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