题目内容
(a
b
)(-3a
b
)=______.
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(a
b
)(-3a
b
)=-3a
+
b
+
=-3a
b
=-3a
.
故答案为:-3a
.
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| 6 | ab5 |
故答案为:-3a
| 6 | ab5 |
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相关题目
化简(a
b
)(-3a
b
)÷(
a
b
)的结果( )
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| 6 |
| 5 |
| 6 |
| A、6a |
| B、-a |
| C、-9a |
| D、9a2 |