A.a4-a3=a | B.
| ||||||
C.3a+6b=9ab | D.3a3b-3ba3=0 |
1 |
2 |
1 |
3 |
1 |
6 |
5 |
7 |
A.-1 | B.1 | C.5 | D.-6 |
A.3a+3b=6ab | B.3y2-2y2=1 | ||||
C.-
| D.2x2+x3=5x5 |
A.m=-2,n=3 | B.m=2,n=3 | C.m=-3,n=2 | D.m=3,n=2 |
A.-(a+b-c)=-a+b-c | B.-2(a+b-3c)=-2a-2b+6c |
C.-(-a-b-c)=-a+b+c | D.-(a-b-c)=-a+b-c |
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