原=2(x²+y²)(x^4-y^4)(x²-y²)(x^4-y^4)
=2(x^4-y^4)^3还有一个呢?1. [ (x-y)的平方+(x+y的平方)](x的平方-y的平方)2.(x平方+y平方)(x-y)(x四次-y四次) 分开来的。 快点好的给分、1..... [ (x-y)²+(x+y)²])(x²-y²)=2(x²+y²)(x²-y²)=2(x^4-y^4)2......(x+y)(x²+y²)(x-y) (x^4-y^4)=(x²-y²)(x²+y²) (x^4-y^4)=(x^4-y^4)(x^4-y^4)=(x^4-y^4)²
