把(X-Y)和(X+Y)各看作一个字母因式,合并同类项3(X+Y)²-(X-Y)+2(X+Y)²+(X-Y)-5(X-Y)²=2在后面是²,2在前面是与后面相乘.

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 09:07:23
把(X-Y)和(X+Y)各看作一个字母因式,合并同类项3(X+Y)²-(X-Y)+2(X+Y)²+(X-Y)-5(X-Y)²=2在后面是²,2在前面是与后面相乘.
x){եtRF6|Nshxcӵӟ}:{=:O't<ݹ鄞w\5eCs k]hBP*k "hktΊ^]lzX"dGDOvгI*-&ݹv6C)hMQC6F 1%2r

把(X-Y)和(X+Y)各看作一个字母因式,合并同类项3(X+Y)²-(X-Y)+2(X+Y)²+(X-Y)-5(X-Y)²=2在后面是²,2在前面是与后面相乘.
把(X-Y)和(X+Y)各看作一个字母因式,合并同类项3(X+Y)²-(X-Y)+2(X+Y)²+(X-Y)-5(X-Y)²=
2在后面是²,2在前面是与后面相乘.

把(X-Y)和(X+Y)各看作一个字母因式,合并同类项3(X+Y)²-(X-Y)+2(X+Y)²+(X-Y)-5(X-Y)²=2在后面是²,2在前面是与后面相乘.
5(X+Y)²-5(X-Y)²