复数的因式分解 x^6-y^6
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x^6-y^6
=(x^3+y^3)(x^3-y^3)
=(x+y)(x-y)(x^2+xy+y^2)(x^2xy+y^2)
=(x+y)(x-y)(x^2+xy+y^2/4+3*y^2/4)(x^2-xy+y^2/4+3*y^2/4)
=(x+y)(x-y)((x+y/2)^2+3*y^2/4)((x-y/2)^2+3*y^2/4)
=(x+y)(x-y)(x+y/2-√3yi/2)(x+y/2+√3yi/2)(x-y/2-√3yi/2)(x-y/2+√3yi/2)
=(x^3+y^3)(x^3-y^3)
=(x+y)(x-y)(x^2+xy+y^2)(x^2xy+y^2)
=(x+y)(x-y)(x^2+xy+y^2/4+3*y^2/4)(x^2-xy+y^2/4+3*y^2/4)
=(x+y)(x-y)((x+y/2)^2+3*y^2/4)((x-y/2)^2+3*y^2/4)
=(x+y)(x-y)(x+y/2-√3yi/2)(x+y/2+√3yi/2)(x-y/2-√3yi/2)(x-y/2+√3yi/2)
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