题目内容
(3xy)2•(-
x6y5z)÷(-
x5y6)=( )
| 1 |
| 5 |
| 1 |
| 15 |
| A.9x3yz | B.27x2yz | C.27x3yz | D.27x3z |
(3xy)2•(-
x6y5z)÷(-
x5y6),
=9x2y2•(-
x6y5z)÷(-
x5y6),
=-
x8y7z÷(-
x5y6),
=27x3yz.
故选C.
| 1 |
| 5 |
| 1 |
| 15 |
=9x2y2•(-
| 1 |
| 5 |
| 1 |
| 15 |
=-
| 9 |
| 5 |
| 1 |
| 15 |
=27x3yz.
故选C.
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