下列各运算中,计算正确的是( )
A.4a2﹣2a2=2 | B.(a2)3=a5 | C.a3•a6=a9 | D.(3a)2=6a2 |
更新时间:2016-12-05 21:06:58
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较易
(0.85)
【推荐1】下列计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58adb58da9bd29eda9ea14681f53ab96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71bdf31d868ccd26ca351d2d3e8787d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac79fa705164b556760a37f43aed49a.png)
,
其中正确的有
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58adb58da9bd29eda9ea14681f53ab96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c71bdf31d868ccd26ca351d2d3e8787d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac79fa705164b556760a37f43aed49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57652bf460a39c190176fcd9cea498f3.png)
其中正确的有
![](https://img.xkw.com/dksih/QBM/2023/1/11/3150415958171648/3163183745548288/STEM/0a7218d9ebf842b2af9ed9ed50327894.png?resizew=4)
A.1个 | B.2个 | C.3个 | D.4个 |
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