a+1 |
a-1 |
1 |
a2-2a+1 |
a |
a-1 |
(a+1)(a-1) |
(a-1)2 |
1 |
(a-1)2 |
a-1 |
a |
a2 |
(a-1)2 |
a-1 |
a |
a |
a-1 |
2 |
2-1 |
b |
a |
a |
c |
x |
x2-1 |
x2+x |
x |
3a |
b |
b2 |
3a2 |
a2-b2 |
a-b |
a2+b2 |
ab |
b |
3a |
6a |
b3 |
x2-9 |
x2-6x+9 |
1 |
x+3 |
1 |
x-2 |
1 |
x+2 |
x2 |
x2-4 |
2 |
m2 |
m-2 |
4 |
2-m |
A.0 | B.1 | C.-1 | D.(m+2)2 |
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