计算:
(1)﹣12019+
﹣![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1625d21fa2fb85cf8c02d8e99f175.png)
(2)(﹣3x2y)2•2x3÷(﹣3x3y4)
(3)x2(x+2)﹣(2x﹣2)(x+3)
(4)(
)2019×(﹣2×
)2018
(1)﹣12019+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7634acb3a275e7bf077ff7b5f7d55f6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1625d21fa2fb85cf8c02d8e99f175.png)
(2)(﹣3x2y)2•2x3÷(﹣3x3y4)
(3)x2(x+2)﹣(2x﹣2)(x+3)
(4)(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94aa05b386ce7f4d75b8003543f7cb24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d357ea085a587a9f975e30e710e4ac.png)
更新时间:2020-03-02 21:07:34
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