题目内容
32
|
| 1 |
| 2 |
|
| 1 |
| 8 |
| 15 |
分析:先化简二次根式,再进行计算即可.
解答:解:原式=3×
÷
×
×(-
)
=-2
×
×
=-
.
2
| ||
| 3 |
| 1 |
| 2 |
| ||
| 5 |
| 1 |
| 8 |
| 15 |
=-2
| 6 |
| 10 | ||
|
| ||
| 8 |
=-
| 15 |
| 2 |
点评:本题考查了二次根式的乘除法,是基础知识比较简单,注意二次根式的化简.
练习册系列答案
相关题目
题目内容
32
|
| 1 |
| 2 |
|
| 1 |
| 8 |
| 15 |
2
| ||
| 3 |
| 1 |
| 2 |
| ||
| 5 |
| 1 |
| 8 |
| 15 |
| 6 |
| 10 | ||
|
| ||
| 8 |
| 15 |
| 2 |