1 |
2×3 |
3-2 |
2×3 |
1 |
2 |
1 |
3 |
1 |
3×4 |
4-3 |
3×4 |
1 |
3 |
1 |
4 |
1 |
n×(n+1) |
1 |
n |
1 |
n+1 |
1 |
x |
1 |
x(x+1) |
1 |
(x+1)(x+2) |
1 |
(x+2)(x+3) |
1 |
(x+3)(x+4) |
1 |
x |
1 |
x |
1 |
x+1 |
1 |
x+1 |
1 |
x+2 |
1 |
x+2 |
1 |
x+3 |
1 |
x+3 |
1 |
x+4 |
2 |
x |
1 |
x+4 |
x+8 |
x(x+4) |
x2-2x+1 |
x2-1 |
1 |
x |
1 |
x+1 |
1 |
x-2 |
x2-1 |
2x-4 |
x |
x-2 |
x |
2+x |
4x |
2-x |
1 |
2 |
ab |
a-b |
a2 |
a-b |
3 |
x-1 |
x2-4x+4 |
x-1 |
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