3 |
x-1 |
1 |
x+1 |
x |
x2-1 |
1 |
2 |
3(x+1)-(x-1) |
(x-1)(x+1) |
x |
(x+1)(x-1) |
2x+4 |
(x-1)(x+1) |
(x+1)(x-1) |
x |
2x+4 |
x |
1 |
2 |
a2 |
a+1 |
1 |
a+1 |
a-1 |
a2-4a+4 |
a2-4 |
2a-2 |
4 |
2-m |
x |
x+y |
2y |
x+y |
xy |
x+2y |
1 |
x |
1 |
y |
4x2-4xy+y2 |
4x-2y |
x2 |
x-2 |
4x |
x-2 |
4 |
x-2 |
a-1 |
a |
a |
a+2 |
1 |
a2+2a |
m |
m2-1 |
m |
m-1 |
2 |
2 |
x+2 |
x |
x2-4 |
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