题目内容
计算:
-
+
.
2x-6y |
4xyz |
5x-6y-xy |
4xyz |
3x |
4xyz |
原式=
=
=
.
2x-6y-5x+6y+xy+3x |
4xyz |
=
xy |
4xyz |
=
1 |
4z |
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题目内容
2x-6y |
4xyz |
5x-6y-xy |
4xyz |
3x |
4xyz |
2x-6y-5x+6y+xy+3x |
4xyz |
xy |
4xyz |
1 |
4z |