已知,
,
求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f035df0f70b026c737ea47d80f47f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697311a41d33bf68aef9e90e9a8718c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691d1b0ca5dd8950a6ff71b6a3f2fa27.png)
更新时间:2022-11-30 21:22:18
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解答题-问答题
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【推荐2】不解方程组
,求(2x+y)(2x-3y)+3x(2x+y)的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cd3b2a0a92919ff749633e4f1b6bc0.png)
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解答题-问答题
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(0.85)
【推荐1】(1)已知
,
,求
①
的值;
②
的值
(2)已知
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d44cf9e670add1bd7dfdece5010e8b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e9bd08eb7a845eaa9a381ac23b4493.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8390a341b796e112700c74245bbcf8ce.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db6cb56c6188e080055e8903176e009.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd12a58ada2dcab3059c2d61ebddbcf9.png)
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【推荐2】求值:
(1)若
,
,则
____________.
(2)已知
,
,求
的值.
(3)已知
,求
的值.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8504e8973f9af7a594d199e1eca01ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0536f0fcca059dde2a2dd19cc71f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4508ce4fb6491d8e155b7ffffa5c8e90.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95fdc6f6c25b8ba95924bb7a9a45a760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7c40ca33c8bd1caef7ee26d95a28e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cb0534b97f4537abde374d89685d24.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761339a873d62d6a8bc0e23c9558dd55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2dd67ce76ce07cb15e6542959c6c27e.png)
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【推荐2】计算题:
(1)﹣t3•(﹣t)4•(﹣t)5;
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(1)﹣t3•(﹣t)4•(﹣t)5;
(2)﹣(a2)3﹣6a2•a4;
(3)已知10a=5,10b=6,求:102a+3b的值.
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