计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02da0477043e07246e460fed56eec0f.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02da0477043e07246e460fed56eec0f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ba8c101ad3c83a87a676f73f938423.png)
更新时间:2022-12-10 19:33:42
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解答题-计算题
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适中
(0.65)
名校
【推荐1】(1)计算:2x(x﹣3y)+(5xy2﹣2x2y)÷y;
(2)计算:(2x﹣3y﹣1)(2x+3y﹣1);
(3)先化简,再求值:[(x+2y)2﹣(3x+y)(﹣y+3x)﹣5y2]÷(﹣
x),其中(2x+1)2+|y﹣2|=0.
(2)计算:(2x﹣3y﹣1)(2x+3y﹣1);
(3)先化简,再求值:[(x+2y)2﹣(3x+y)(﹣y+3x)﹣5y2]÷(﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.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)
;
(2)
;
(3)先化简,再求值:
其中
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c10ad1dff4fbfcd8d0e022c8e1b07c2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0162c763c06c146cafa8b2b18f93688.png)
(3)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c356bdfe51e0e69cd1975abd41d44695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db119a070db66108d4a04a0aaa7b2a7c.png)
您最近一年使用:0次