(x-y)²(x+y)²(x²-xy+y²)²(x²+xy+y²)² 等于几?
问题描述：
(x-y)²(x+y)²(x²-xy+y²)²(x²+xy+y²)² 等于几?
答
(x-y)²(x+y)²(x²-xy+y²)²(x²+xy+y²)²=[(x+y)(x²-xy+y²)]²[(x-y)²(x²+xy+y²)]²=(x³+y³)²(x³-y³)²=[(x...