问题 解答题
(1)
2
2
(2
12
+4
1
8
-3
48
)

(2)(2
3
+3
2
)2-(2
3
-3
2
)2
答案

(1)原式=

2
2
(4
3
+
2
-12
3
),

=

2
2
2
-8
3
),

=1-4

6

(2)原式=(2

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

=4

3
×6
2

=24

6

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