因式分解:2x^4y^4-x^8-y^8
问题描述:
因式分解:2x^4y^4-x^8-y^8
答
2x^4y^4-x^8-y^8
=-(x^8-2x^4y^4+y^8)
=-(x^4-y^4)^2
=-(x^2+y^2)^2(x+y)^2(x-y)^2