A.8 | B.5 | C.10 | D.11 |
|
|
1 |
2 |
A.1 | B.-1 | C.-2 | D.-3 |
A.x+2(y-1)=x+2y-1 | B.x-2(y-1)=x+2y+2 |
C.x-2(y-1)=x-2y-2 | D.x-2(y-1)=x-2y+2 |
A.3a+2a=5a2 | B.a2+a2=a4 |
C.-a2b+2a2b=a2b | D.5a3-2a3=3 |
A.3x2+2x3=5x5 | B.4y2-y2=3 |
C.x+2y=3xy | D.3x2y+yx2=4x2y |
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