2 |
1 |
4 |
1-x |
x-2 |
1 |
2-x |
-b±
| ||
2a |
4±
| ||
2×1 |
2±
| ||
2 |
2+
| ||
2 |
2-
| ||
2 |
2 |
1 |
4 |
2 |
1 |
4 |
2 |
1 |
4 |
| ||||
2 |
| ||||
2 |
| ||||
2 |
1-x |
x-2 |
2 |
x-3 |
3 |
x |
x |
x-1 |
3 |
(x-1)(x+2) |
2x |
2x-3 |
1 |
2x+3 |
1 |
b |
1 |
a |
A.
| B.
| C.
| D.-
|
6x+1 |
3x+1 |
x-6 |
2x+2 |
A.x=-2 | B.x=2 | C.x=
| D.x=-
|
1 |
a+1 |
1 |
a-1 |
a |
a+1 |
3 |
x-3 |
4 |
x |
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