解方程:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3d07eee6f94a5b6d4de240df2ae557.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3d07eee6f94a5b6d4de240df2ae557.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc3352a44201ed9287e4668b4a3f7ae.png)
更新时间:2023-01-29 17:23:54
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解答题-计算题
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【推荐2】已知关于
的方程
是一元一次方程.
(1)求
的值;
(2)求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c93e851dc1f569d438a75512320df19.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求代数式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541ea94f2771fed2c81115784476a46d.png)
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解答题-计算题
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【推荐1】规定:用
表示大于m的最小整数,例如
,
,
.用
表示a,b两数中较大的数,例如
.按上述规定:
(1)
______,
______;
(2)若
,则x的取值范围是______;
(3)如果整数x满足
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf7b7d7a57bf868ea5986c12cf3accfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db35184d7958d54c5cadbad94a06e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1056cd60df708f303c766f3d4d492d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde1db741d47f078cfab4ba34d86170d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9d48e670be1ddbfee3738824a7eccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae4f1a29c99d087d9f37ac25b1657fa.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443e4a74ad4fef1dafa6d52c0e913fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44243ae5b5b7627d29f64f20a3d8d706.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096dfcd47bb26a843a07be532b882011.png)
(3)如果整数x满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7685f966ea16cc62f8e0c002bf7cc74c.png)
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【推荐2】按要求解下列各题:
(1)先化简,再求值:(x﹣2y)2﹣3(x+y)(x﹣y)+2x2,其中,x=1,y=﹣1.
(2)解方程:( x+3)(x﹣3)﹣(x+5)(x﹣1)=2
(1)先化简,再求值:(x﹣2y)2﹣3(x+y)(x﹣y)+2x2,其中,x=1,y=﹣1.
(2)解方程:( x+3)(x﹣3)﹣(x+5)(x﹣1)=2
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