题目内容
单项式15a2,xy,
a2b3,0.1m3,-abc,-
的数字系数之和等于______.
2 |
3 |
3a2b |
4 |
15a2,xy,
a2b3,0.1m3,-abc,-
的数字系数分别是15,1,
,0.1,-1,-
,
15+1+
+0.1-1-
=15
.
故答案为:15
.
2 |
3 |
3a2b |
4 |
2 |
3 |
3 |
4 |
15+1+
2 |
3 |
3 |
4 |
1 |
60 |
故答案为:15
1 |
60 |
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