先化简,再求值:
,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff059a5dc3c136485c1c10cbc20b035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
更新时间:2023-01-05 13:31:27
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相似题推荐
解答题-计算题
|
较易
(0.85)
【推荐2】(1)先化简,再求值:
,其中
.
(2)已知
,
,求
和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fa5efc862a1b062f5f8c374b772258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172d97cb4d8b8a629447297174a61188.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c5a2a0320e34320db6055e31f0f8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a100443e47f3bd8ff48866627c5a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09ffc1644c7029219b88232145abbdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708929b0c4f51df55db33092d887a926.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】计算下列各题:
(1)
;
(2)
;
(3)
;
(4)(a+b)(a-2b)-a(a-b);
(5)(a+b+c)(a-b+c);
(6)
(用整式乘法公式进行计算)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67b604ce8f1700fba71682ffd585f9f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d84810702db6e81e37d6698e35e9a1.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d934e2e209fc64423c398f8a661198ef.png)
(4)(a+b)(a-2b)-a(a-b);
(5)(a+b+c)(a-b+c);
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c27331d3f36e9ca78afc9db783b49a.png)
您最近一年使用:0次