题目内容
计算.
(1)|
-4|-22+
;
(2)(
-
)2(5+2
)2.
(1)|
| 3 |
| 12 |
(2)(
| 3 |
| 2 |
| 6 |
(1)原式=4-
-4+2
=
;
(2)原式=(5-2
)(5-2
)(5-2
)
=(25-24)(5-2
)
=5-2
.
| 3 |
| 3 |
=
| 3 |
(2)原式=(5-2
| 6 |
| 6 |
| 6 |
=(25-24)(5-2
| 6 |
=5-2
| 6 |
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题目内容
| 3 |
| 12 |
| 3 |
| 2 |
| 6 |
| 3 |
| 3 |
| 3 |
| 6 |
| 6 |
| 6 |
| 6 |
| 6 |