已知
与
(m、n是常数)的差是单项式,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9369879eabd00e5c519d70c0a59c2192.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92ca9b2be52a646f037ad767227221ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e60433dc403edeb0de6e07932fa65c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9369879eabd00e5c519d70c0a59c2192.png)
更新时间:2024-02-17 09:52:58
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【推荐1】已知
,
.(a为常数)
(1)若A与B的二次项系数互为相反数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___________ ;
(2)在(1)的条件下,化简:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366b8fcaa2038c2b5b10f437991eced9.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f8c7721d39331207751e80f9d0839e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd0126b405ea023452d164a5b4949b3.png)
(1)若A与B的二次项系数互为相反数,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(2)在(1)的条件下,化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366b8fcaa2038c2b5b10f437991eced9.png)
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