题目内容
解方程:(x+
)2-(x+
)(x-
)=
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
(x+
)2-(x+
)(x-
)=
,
∴x2+
x+
-x2+
=
,
x=
,
∴x=
.
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
∴x2+
| 1 |
| 2 |
| 1 |
| 16 |
| 1 |
| 16 |
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 8 |
∴x=
| 3 |
| 4 |
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