x2+1 |
x2-1 |
x-2 |
x-1 |
x-2 |
x |
x2+1 |
x2-1 |
x-2 |
x-1 |
x |
x-2 |
x2+1 |
(x+1)(x-1) |
x |
x-1 |
x2+1-x(x+1) |
(x+1)(x-1) |
1-x |
(x+1)(x-1) |
1 |
x+1 |
1 |
-3+1 |
1 |
2 |
a2-1 |
a-1 |
| ||
a2+a |
1 |
a |
2 |
tan45°-tan60° |
12 |
x-2 |
4-x |
x-2 |
2 |
1 |
m+3 |
6 |
9-m2 |
2 |
m-3 |
1 |
a2 |
a4-1 |
a3+a |
a-1 |
a+2 |
a2-4 |
a2-2a+1 |
1 |
a+3 |
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