A.3ab2与-2a2b | B.4ab2与2ab2c | ||
C.3ab2与-
| D.π3与a3 |
A.6a-5a=1 | B.a2+a3=a5 |
C.5a+3b=8ab | D.4x2y-4yx2=0 |
x | 2 |
1 |
3 |
x | 2 |
b | 2 |
b | 2 |
2 | 3 |
3 | 2 |
x | 3 |
x | 3 |
y | 2 |
1 |
5 |
y | 2 |
a | 2 |
b | 2 |
a | 2 |
b | 2 |
A.-2(3x-1)=-6x-1 | B.-2(3x-1)=-6x+1 |
C.-2(3x-1)=-6x-2 | D.-2(3x-1)=-6x+2 |
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