题目内容
化简题:
(1)(
-
)×
(2)2
-
+
(3)(3+
)(
-2)+(
+1)2.
(1)(
18 |
|
32 |
(2)2
8 |
|
50 |
(3)(3+
5 |
5 |
5 |
(1)原式=(3
-
)×4
=
×4
=20;
(2)原式=4
-
+5
=
;
(3)原式=5-
-6+6+2
=5+
.
2 |
| ||
2 |
2 |
=
5
| ||
2 |
2 |
=20;
(2)原式=4
2 |
| ||
6 |
2 |
=
53
| ||
6 |
(3)原式=5-
5 |
5 |
5 |
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