试题:
(1)计算:
1
13
36
+
3-0.125
-(π-2)0

(2)分解因式:2x3y-8x2y2+8xy3

答案:

我来补答
(1)原式=
7
6
-0.5-1
=-
1
3


(2)2x3y-8x2y2+8xy3
=2xy(x2-4xy+4y2
=2xy(x-2y)2
 
 
展开全文阅读
剩余:2000
这些题目你会做吗?