已知
,
,试计算
,并把结果放在括号前带“
”的括号内.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e962526f4bbff559cc42a7f8d2128bde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f9aad001a74f7ebdd50a8695b7c646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c59c82ef957da631615eae6a1090da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
更新时间:2019-10-26 08:59:01
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐2】将式子
,
分别反过来,你得到两个怎样的等式?
【探究】观察你得到的等式,你能总结出添括号的法则吗?
【应用】根据上面你总结出的添括号法则,不改变多项式
的值,把它的后两项放在:
①前面带有“
”号的括号里;
②前面带有“
”号的括号里.
【拓展】若
,则
的值为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e946000327dc407b6fb75a18a7e2b2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f60b173419b90e5a6427bc7d95f8f6c.png)
【探究】观察你得到的等式,你能总结出添括号的法则吗?
【应用】根据上面你总结出的添括号法则,不改变多项式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10c1682db5940d2102604c6d32cd743.png)
①前面带有“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
②前面带有“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
【拓展】若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41103daa69ad150f0b4c1fd1e67cda21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9895869bf238cb5d7d5a7cf73e604b.png)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
名校
【推荐1】若有理数
在数轴上对应的点
位置如图所示:
(1)用“>”或“<”号填空:
________0;
_______0;
_______0.
(2)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/27/8002ebf1-43d5-4dbe-a8c3-7fe2932312d3.png?resizew=282)
(1)用“>”或“<”号填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa17a39f52e09981729af4439ca535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea712984ea5017140e20bee226fd5af.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3c141dba66c76663209f027a18e249.png)
您最近一年使用:0次