计算:(x²+2xy+y²)(x²-xy+y²)²有简便算法吗,

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/26 10:25:07
计算:(x²+2xy+y²)(x²-xy+y²)²有简便算法吗,计算:(x²+2xy+y²)(x²-xy+y²

计算:(x²+2xy+y²)(x²-xy+y²)²有简便算法吗,
计算:(x²+2xy+y²)(x²-xy+y²)²有简便算法吗,

计算:(x²+2xy+y²)(x²-xy+y²)²有简便算法吗,

=(x+y)²(x²-xy+y²)²
=[(x+y)(x²-xy+y²)]²
=(x的立方+y的立方)²