a2-4a+4 |
a2-2a+1 |
a-1 |
a2-4 |
2a |
b |
1 |
a-b |
a |
b |
b |
4 |
(a-2)2 |
(a-1)2 |
a-1 |
(a+2)(a-2) |
a-2 |
(a-1)(a+2) |
4a2 |
b2 |
1 |
a-b |
a |
b |
4 |
b |
4a |
b2 |
a |
a-b |
4a |
b2 |
a-a+b |
a-b |
4a |
b(a-b) |
a-2 |
(a-1)(a+2) |
4a |
b(a-b) |
b |
a+2b |
a2+2ab+b2 |
a2-4b2 |
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 |
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 |
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