1 |
x |
3 |
x |
1 |
x |
A.y2+3y+2=0 | B.y2-3y-2=0 | C.y2+3y-2=0 | D.y2-3y+2=0 |
1 |
x |
x+2 |
x |
x |
3x+6 |
x+2 |
x |
A.y+3y=2 | B.y+y/3=2 | C.y+1/3y=2 | D.3y2-6y+1=0 |
1 |
x-2 |
1-x |
2-x |
x |
x-1 |
x |
x-1 |
2 | ||
|
27 |
3 |
48 |
54 |
3 |
1 | ||
|
x |
x-1 |
1 |
x+1 |
2 |
x2-1 |
m-1 |
x-1 |
x |
x-1 |
A.3 | B.2 | C.1 | D.-1 |
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