题目内容

计算:
(1)(5-
7
2
(2)
8
+
32
-
2

(3)(
5
-2)2004×(
5
+2)2003
(4)
2
12
+
3
3
+(1-
3
0
(1)原式=25-10
7
+7
=32-10
7


(2)原式=2
2
+4
2
-
2

=5
2


(3)原式=[(
5
-2)(
5
+2)]2003
5
-2)
=(5-4)2003
5
-2)
=
5
-2;

(4)原式=
4
3
+
3
3
+1
=
5
3
3
+1
=5+1
=6.
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