题目内容
计算题:
(1)
-3
+
;
(2)(
+
)2.
(1)
| 32 |
|
| 2 |
(2)(
| 2 |
| 5 |
(1)原式=4
-
+
=(4-
+1)
=
;
(2)原式=(
)2+(
)2+2
•
=2+5+2
=7+2
| 2 |
3
| ||
| 2 |
| 2 |
=(4-
| 3 |
| 2 |
| 2 |
=
7
| ||
| 2 |
(2)原式=(
| 2 |
| 5 |
| 2 |
| 5 |
=2+5+2
| 10 |
=7+2
| 10 |
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