3-x |
2x-4 |
5 |
x-2 |
3-x |
2x-4 |
5 |
x-2 |
-(x-3) |
2(x-2) |
x2-4-5 |
x-2 |
-(x-3) |
2(x-2) |
x-2 |
(x+3)(x-3) |
1 |
2x+6 |
1 |
a-1 |
a |
2a-2 |
x+2 |
x2-6x+9 |
1 |
3-x |
x-3 |
x+2 |
x2-1 |
x2-2x+1 |
x |
x-1 |
x+y |
x-y |
4xy |
y2-x2 |
x2+2xy-3y2 |
x2-9y2 |
1 |
x2-x |
x-2 |
x2-2x+1 |
x-2 |
x-1 |
1+x |
x2+x-2 |
x2-1 |
x+2 |
1 |
2 |
y3-y |
(xy+1)2-(x+y)2 |
(x+y)y |
x+1 |
1 |
12 |
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