题目内容
化简
(1)
-
×
+
(2)
-
+
.
(1)
| ||
|
|
| 24 |
| 12 |
(2)
| ||||
|
| (-4)2 |
| 3 | -8 |
(1)原式=
-
+2
=4-2
+2
=4;
(2)原式=2+3-4-2=-1.
|
|
| 3 |
| 3 |
| 3 |
(2)原式=2+3-4-2=-1.
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题目内容
| ||
|
|
| 24 |
| 12 |
| ||||
|
| (-4)2 |
| 3 | -8 |
|
|
| 3 |
| 3 |
| 3 |