2 |
x2-4 |
1 |
2x-4 |
a-1 |
a |
a2-1 |
a2+2a |
2 |
(x+2)(x-2) |
1 |
2(x-2) |
4 |
2(x+2)(x-2) |
x+2 |
2(x+2)(x-2) |
4-(x+2) |
2(x+2)(x-2) |
2-x |
2(x+2)(x-2) |
-(x-2) |
2(x+2)(x-2) |
1 |
x+2 |
a-1 |
a |
a(a+2) |
(a+1)(a-1) |
a+2 |
a+1 |
a+1 |
a+1 |
a+2 |
a+1 |
a+1-(a+2) |
a+1 |
-1 |
a+1 |
1 |
a+1 |
1 |
2+1 |
1 |
3 |
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