先化简,再求值:
其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f98501cab1f849fd4a934075f4dadcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3be1d998d22c85f8f683fc070948077.png)
更新时间:2018-12-08 08:00:12
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【知识点】 整式的加减中的化简求值解读
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解答题-计算题
|
适中
(0.65)
【推荐1】(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bdd55793ebd4d7f2cdcba5b5564ed2c.png)
(2)解方程:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26215fb87345c61245f151332420b5f.png)
(3)先化简,再求值:
,其中
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bdd55793ebd4d7f2cdcba5b5564ed2c.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26215fb87345c61245f151332420b5f.png)
(3)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9edd9eec95e9bb108b1ae9fc2f1ebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】计算:
(1)先化简下式,再求值:3(2a2b-ab2)-(ab2+3a2b)+b3,其中a=-1,b=-3
(2)已知x+4y=-1,xy=6,求(6xy+7y)+[8x-(5xy-y+6x]的值.
(1)先化简下式,再求值:3(2a2b-ab2)-(ab2+3a2b)+b3,其中a=-1,b=-3
(2)已知x+4y=-1,xy=6,求(6xy+7y)+[8x-(5xy-y+6x]的值.
您最近一年使用:0次