计算:
(1)
;
(2)
;
(3)先化简,再求值:
,其中
,
;
(4)解方程:
;
(5)解方程:
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d605d018bc963f4075d343be23f4803.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5910a7c93ee8967fe8020e22cd60b58.png)
(3)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88f97b9127aaa1f78b74dc286af0a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc64eaf4cd6737b000b28f1fcdd16c4b.png)
(4)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6da4c027bbc7022f323eaa12080dc17.png)
(5)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7124ad214228277b44c5d4be68cf574e.png)
更新时间:2024-01-11 19:33:52
|
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐2】已知:A=x2-3xy-y2,B=x2-3xy-3y2.
(1)求整式M=2A-B;
(2)当x=-2,y=1时,求整式M的值.
(1)求整式M=2A-B;
(2)当x=-2,y=1时,求整式M的值.
您最近一年使用:0次