1 |
2a |
a2-1 |
a2-2a+1 |
a2+a |
a2-2a+1 |
1 |
2 |
1 |
2a |
(a+1)(a-1) |
(a-1)2 |
(a-1)2 |
a(a+1) |
1 |
2a |
a-1 |
a |
1-2a+2 |
2a |
3-2a |
2a |
1 |
2 |
3-2a |
2a |
3-2×(-
| ||
2×(-
|
2x-3 |
x |
x2-9 |
x |
3 |
a2-ab |
a2 |
a |
b |
b |
a |
x2+6x+9 |
x2-9 |
x+3 |
x2-3x |
(x+1)2 |
x2-1 |
x-3 |
x+1 |
a2-b2 |
a2-ab |
2ab+b2 |
a |
2 |
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