计算:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac6bbefe4162d6ad170c2581c89aa63.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358a6945ce86a711994766f16b352e2f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f649d9e305d2d605c18e9fc4be27759a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733abf33444f175a9631f44614e9aa3b.png)
更新时间:2024-04-20 11:05:32
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解答题-问答题
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适中
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【推荐1】在
的运算结果中,
的系数为
,x的系数为
,求a,b的值并对式子
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解答题-计算题
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适中
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名校
【推荐2】甲乙两人共同计算一道整式乘法:
,甲把第二个多项式中
前面的减号抄成了加号,得到的结果为
,乙漏抄了第二个多项式中
的系数
,得到的结果为
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(1)计算出
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cae1d50fe8c1428beed09e6e48d4f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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(1)计算出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求出这道整式乘法的正确结果.
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解答题-计算题
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适中
(0.65)
【推荐2】阅读下列材料,然后回答问题
在进行二次根式化简时,我们有时会碰上如
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;
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(1)请用不同的方法分母有理化:
;
(2)化简:
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在进行二次根式化简时,我们有时会碰上如
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6d7b69b454f0a51548dd8a3482174a.png)
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解答题-计算题
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适中
(0.65)
【推荐1】计算:
(1)(2x3)y3÷16xy2;
(2)x(x+2y)﹣(x+1)2+2x;
(3)(x﹣5y)(x+5y)﹣(x﹣5y)2.
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解答题-证明题
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适中
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【推荐2】(1)如图1,等腰直角三角形ABC中,
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______,
______,
______,
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的对角线交于点O,求证:
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