问题 解答题
计算
(1)
32x3y6

(2)(3
3
-2
2
)(3
3
+2
2
)

(3)2x
4
x
-
0.36x
答案

(1)原式=

42×2x2•x•(y3)2
=4xy3
2x

(2)原式=(3

3
2-(2
2
2

=27-8,

=19;

(3)原式=2x

22x
x2
-
0.62x

=2x•

2
x
x
-0.6
x

=4

x
-0.6
x

=

17
5
x

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