4 |
2-a |
12 |
m2-9 |
2 |
3-m |
1 |
1-x |
x |
x-1 |
x-2 |
x+2 |
x-2 |
x+2 |
x2-2x |
x2 |
(a+2)(a-2) |
a-2 |
4 |
a-2 |
a2 |
a-2 |
12-2(m+3) |
(m+3)(m-3) |
-2(m-3) |
(m+3)(m-3) |
2 |
m+3 |
1-x-1 |
1-x |
x-1 |
x |
x2 |
x-1 |
3 |
2 |
3x |
x-1 |
x |
x+1 |
x2-1 |
x |
2 |
2x-6 |
4-4x+x2 |
x+3 |
x-2 |
x2+6x+9 |
3-x |
3x-3 |
x2-1 |
3x |
x+1 |
1 |
x-1 |
A.
| B.(
| C.
| D.-
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