(x05+xy+y05)(x05-xy+y05)怎么简便运算
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![(x05+xy+y05)(x05-xy+y05)怎么简便运算](/uploads/image/z/5553747-27-7.jpg?t=%28x05%2Bxy%2By05%29%28x05-xy%2By05%29%E6%80%8E%E4%B9%88%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
(x05+xy+y05)(x05-xy+y05)怎么简便运算
(x05+xy+y05)(x05-xy+y05)怎么简便运算
(x05+xy+y05)(x05-xy+y05)怎么简便运算
(x05+xy+y05)(x05-xy+y05)
=(x^2+y^2+xy)(x^2+y^2-xy)
=(x^2+y^2)^2 -(xy)^2
=x^4+2x^2y^2+y^4 -x^2y^2
=x^4+x^2y^2+y^4