题目内容
计算:
(1)(2×103)2=______.
(2)-(3x2y)2=______.
(3)(-
a2b)2=______.
(1)(2×103)2=______.
(2)-(3x2y)2=______.
(3)(-
| 3 |
| 4 |
(1)原式=22×(103)2
=4×106;
(2)原式=-9x2×2y2
=-9x4y2;
(3)原式=(-
)2a2×2b1×2
=
a4b2.
故答案为:4×106.-9x4y2.
a4b2.
=4×106;
(2)原式=-9x2×2y2
=-9x4y2;
(3)原式=(-
| 3 |
| 4 |
=
| 9 |
| 16 |
故答案为:4×106.-9x4y2.
| 9 |
| 16 |
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