12 |
m2-9 |
2 |
m-3 |
12 |
(m+3)(m-3) |
2(m+3) |
(m+3)(m-3) |
2(3-m) |
(m+3)(m-3) |
2 |
(m+3) |
1 |
27 |
4 |
27 |
4m7 |
27m13 |
2 |
(m+3) |
4m7 |
27m13 |
a-b |
a |
2ab-b2 |
a |
x2+2x+1 |
x+2 |
x2-1 |
x-1 |
1 |
x+2 |
a |
a-1 |
a |
a+1 |
2a |
a-1 |
1 |
a-2 |
1 |
a+2 |
2 |
2-a |
a |
a-2 |
a |
a+2 |
a |
2-a |
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