题目内容
计算:(3x3y-18x2y2+x2y)÷(-6x2y)=______.
(3x3y-18x2y2+x2y)÷(-6x2y),
=(3x3y)÷(-6x2y)-18x2y2÷(-6x2y)+x2y÷(-6x2y),
=-
x+3y-
.
故应填:-
x+3y-
.
=(3x3y)÷(-6x2y)-18x2y2÷(-6x2y)+x2y÷(-6x2y),
=-
| 1 |
| 2 |
| 1 |
| 6 |
故应填:-
| 1 |
| 2 |
| 1 |
| 6 |
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