27 |
1 |
2 |
3x |
x-2 |
x |
x+2 |
x2-4 |
x |
27 |
1 |
2 |
| ||
2 |
3 |
3 |
3 |
3 |
3x |
x-2 |
x |
x+2 |
x2-4 |
x |
3x(x+2)-x(x-2) |
(x+2)(x-2) |
(x+2)(x-2) |
x |
2x(x+4) |
(x+2)(x-2) |
(x+2)(x-2) |
x |
1 |
2 |
3 |
1 | ||
|
1 |
a-1 |
a2-4 |
(a2-2a+1)(a+2) |
2 |
1 |
3 |
2 |
4 |
x2-4 |
1 |
x-2 |
12 |
3 |
4 |
1 |
m-1 |
m |
m2-1 |
x2+x |
x2 |
x |
x2-1 |
18 |
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