填空题 容易0.94 引用1 组卷217
计算下列各题:
(1)化简:①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ebf12566311a97d1a9644ec02e1702.svg)
__________ ;②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e216d7f635deac1ab358438365726dd3.svg)
_________ ;③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5cfdc642d6b446f45335f29970e6706.svg)
__________ ;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6330e6acb4506f793f2153608333ee.svg)
_________ ;⑤![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7b01a2d8fb9b62d115b2689def73c2.svg)
_________ ;⑥![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb5a094c183f10f7210f407c1e7349e.svg)
_________ ;⑦![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93740f1b9124a80942a43b3d2efaacbe.svg)
_________ ;⑧![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929ed4ce4e319b490231c0f20c2e1cfa.svg)
_________ .
(2)分解因式:①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c749ab0b1aee57c9f489776fc89d077a.svg)
_________ ;②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b7925d6f5ed2908bd18fa0715280de.svg)
___________ .
(3)若代数式
有意义,则
的取值范围是_________ .
(4)一个多边形的内角和是
,这个多边形的边数是_________ .
(1)化简:①
(2)分解因式:①
(3)若代数式
(4)一个多边形的内角和是
22-23八年级上·福建厦门·期末
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