1 |
2m-4 |
2 |
m2-4 |
1 |
2(m-2) |
2 |
(m+2)(m-2) |
m+2-4 |
2(m+2)(m-2) |
m-2 |
2(m+2)(m-2) |
1 |
2(m+2) |
m-2 |
m+1 |
2m-1 |
m+1 |
1 |
a-b |
1 |
a+b |
x-3 |
x2-1 |
3 |
1-x |
x-3 |
(x-1)(x+1) |
3 |
x-1 |
x-3 |
(x-1)(x+1) |
3(x+1) |
(x-1)(x+1) |
a |
m |
a-b |
m |
x |
x-y |
y |
x-y |
1 |
2x |
1 |
x |
b2 |
a2-b2 |
b2 |
b2-a2 |
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