9-a2 |
a2+6a+9 |
a2-3a |
a+3 |
1 |
a |
(3+a)(3-a) |
(a+3)2 |
a(a-3) |
a+3 |
1 |
a |
(3+a)(3-a) |
(a+3)2 |
a+3 |
a(a-3) |
1 |
a |
1 |
a |
1 |
a |
2 |
a |
x-1 |
x+1 |
2x |
x2-1 |
2 |
x2-1 |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
x-4 |
x |
2(x-1) |
x-4 |
x+6 |
x |
a-2 |
a+2 |
4a |
a2-4 |
1 |
a2-4 |
x2-2x |
x2-4 |
2x |
x+2 |
1 |
2 |
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