x2+3 |
x+1 |
3x+3 |
x2+3 |
x2+3 |
x+1 |
A.3y2+4y+1=0 | B.3y2-4y+1=0 | C.y2+3y-4=0 | D.y2-4y+3=0 |
x2+3 |
x+1 |
1 |
y |
3x |
x2-1 |
x2-1 |
x |
5 |
2 |
x |
x2-1 |
A.y+
| B.2y2-5y+2=0 | C.3y+
| D.6y2+5y+2=0 |
x-1 |
x+2 |
x+2 |
x-1 |
5 |
2 |
1 |
x+2 |
4x |
x2-4 |
2 |
2-x |
A.x1=1,x2=2 | B.x1=-1,x2=-2 |
C.x=2 | D.x=1 |
a |
x+1 |
3 |
x2-1 |
2 |
x-1 |
x2+6x-9 |
x2-3x+2 |
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