题目内容
计算:(结果保留最简根式)
(1)
(
-
)
(2)
-
-
+
(1)
| 2 |
| 8 |
| 6 |
(2)
| 54 |
| 32 |
| 24 |
| 18 |
(1)原式=
-
,
=4-2
;
(2)原式=3
-4
-2
+3
,
=
-
.
| 16 |
| 12 |
=4-2
| 3 |
(2)原式=3
| 6 |
| 2 |
| 6 |
| 2 |
=
| 6 |
| 2 |
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| 2 |
| 8 |
| 6 |
| 54 |
| 32 |
| 24 |
| 18 |
| 16 |
| 12 |
| 3 |
| 6 |
| 2 |
| 6 |
| 2 |
| 6 |
| 2 |