3a2bc3 |
5 |
3a2bc3 |
5 |
3 |
5 |
A.-1是单项式 | B.24x3是7次单项式 |
C.单项式a的系数是0 | D.单项式a的次数是0 |
5xy3 |
2 |
A.系数是-
| B.系数是-
| ||||
C.系数是-5,次数是4 | D.系数是-5,次数是3 |
a2b2c |
3 |
A.3a2•5a3=15a6 | B.-3x4•(-2x2)=-6x6 |
C.3x3•2x4=6x12 | D.(-b)3•(-b)5=b8 |
A.-
| B.a+b | C.x2+1 | D.
|
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