题目内容
-| 1 |
| b |
| ab2 |
|
| 1 |
| a |
| a2b3 |
分析：先将二次根式化为最简，然后再进行二次根式的乘除法运算．
解答：解：原式=-
÷
•(-
)
=-
•b
•
•(-
•ab
)
=-
•
•(-b
)
=ab．
| 1 |
| b |
| ab2 |
|
| 1 |
| a |
| a2b3 |
=-
| 1 |
| b |
| a |
| ||
| b |
| 1 |
| a |
| b |
=-
| a |
| ||
| b |
| b |
=ab．
点评：本题考查二次根式的乘除运算，难度不大，注意先将二次根式化为最简．
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