题目内容
计算题
(1)(-
)2-
(2)(
-
)2+
-
.
(1)(-
| 10 |
| (-7)2 |
(2)(
| 3 |
| 2 |
| 24 |
|
(1)原式=10-7
=3;
(2)原式=(
)2-2
×
+(
)2+2
-
=3-2
+2+2
-
=5-
.
=3;
(2)原式=(
| 3 |
| 3 |
| 2 |
| 2 |
| 6 |
| ||
| 4 |
=3-2
| 6 |
| 6 |
| ||
| 4 |
=5-
| ||
| 4 |
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题目内容
| 10 |
| (-7)2 |
| 3 |
| 2 |
| 24 |
|
| 3 |
| 3 |
| 2 |
| 2 |
| 6 |
| ||
| 4 |
| 6 |
| 6 |
| ||
| 4 |
| ||
| 4 |