计算
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632b650be4e41560cdc4e49df2004b74.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c85ca02b783cc9416d3a7d186fddbd.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aab41d47b62a5ef04b05790ed55c68a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4d4be40d0a5c36809407cab3816ba6.png)
更新时间:2022-06-19 13:49:23
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【推荐1】化简求值:[4(x2+y)(x2-y)-(2x2-y)2]÷y,其中x=
,y=3.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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