x |
x-2 |
x |
x+2 |
4x |
x-2 |
x(x+2)-x(x-2) |
(x+2)(x-2) |
x-2 |
4x |
4x |
(x+2)(x-2) |
x-2 |
4x |
1 |
x+2 |
| ||
2 |
1 |
2 |
2 |
1 | ||
|
1 | ||
|
| ||
2 |
a2-ab |
a2 |
a |
b |
b |
a |
1 |
x-1 |
x2 |
x2-1 |
2 |
a2+ab |
b |
a2-b2 |
ab |
b-a |
a2-2ab+b2 |
1 |
2 |
3 |
3 |
a |
a+1 |
b |
b+1 |
1 |
a+1 |
1 |
b+1 |
a |
ab+a+1 |
b |
bc+b+1 |
c |
ca+c+1 |
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