题目内容
已知:a-
=
,则a2+
=______.
| 1 |
| a |
| 5 |
| 6 |
| 1 |
| a2 |
a-
=
,
两边平方得:a2+
-2=
,
则a2+
=
+2=
.
故答案是:
.
| 1 |
| a |
| 5 |
| 6 |
两边平方得:a2+
| 1 |
| a2 |
| 25 |
| 36 |
则a2+
| 1 |
| a2 |
| 25 |
| 36 |
| 97 |
| 36 |
故答案是:
| 97 |
| 36 |
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题目内容
| 1 |
| a |
| 5 |
| 6 |
| 1 |
| a2 |
| 1 |
| a |
| 5 |
| 6 |
| 1 |
| a2 |
| 25 |
| 36 |
| 1 |
| a2 |
| 25 |
| 36 |
| 97 |
| 36 |
| 97 |
| 36 |