题目内容
计算下列各题:
(1)
+
+
-
;
(2)(x4)3•(-x2)3.
(1)
| 121 |
| 36 |
2
|
| 3 | -0.125 |
(2)(x4)3•(-x2)3.
(1)
+
+
-
,
=11+6+
+0.5,
=19;
(2)(x4)3•(-x2)3,
=x12•(-x6),
=-x18.
| 121 |
| 36 |
2
|
| 3 | -0.125 |
=11+6+
| 3 |
| 2 |
=19;
(2)(x4)3•(-x2)3,
=x12•(-x6),
=-x18.
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