计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69ef182031541048760fd0da4fc39c8.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69ef182031541048760fd0da4fc39c8.png)
更新时间:2023-01-29 16:09:52
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较易
(0.85)
【推荐2】已知a,b为常数,且三个单项式
的和仍然是单项式,则
的值是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62a3776e7ccb044ff813679f3ab1bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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