A.xy2与-
| B.3x2y与-4x2yz | ||
C.a3与b3 | D.-2a3b与
|
1 |
2 |
A.2x+3y=5xy | B.5x-3x=2x2 |
C.7y2-5y2=2 | D.9a2b-4ba2=5a2b |
A.3÷
| B.5a+2b=7ab | ||
C.-2(a-b)=-2a-b | D.3x+5x=8x |
A.3a-2a=1 | B.3a2+5a2=8a4 |
C.a2b-2ab2=-ab2 | D.3a+2a=5a |
A.3x2-x-6中的一次项系数为1 |
B.单项式:abc的系数为0 |
C.2x2-5x2y+0.8x3y-5是四次四项式 |
D.am2与bm2是同类项 |
1 |
4 |
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