a2+a |
a3+2a2-6 |
a2+a |
a3+2a2-6 |
(1-a)+a |
a2•a+2a2-6 |
1 |
(1-a)•a+2(1-a)-6 |
1 |
-a2-a-4 |
1 |
-(a2+a)-4 |
1 |
-1-4 |
1 |
5 |
3+x |
x-2 |
5 |
x-2 |
x-1 |
x |
2x-1 |
x |
1 |
a |
1 |
a |
a3 |
a+1 |
a |
a+1 |
m2 |
m-1 |
4a |
a2-1 |
1+a |
1-a |
a2b |
-cd3 |
2a |
d3 |
c |
2a |
m-1 |
m |
m2-1 |
m2+2m |
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