问题
解答题
计算: (1)-12÷
(2)(-2)÷[(-
|
答案
(1)-12÷
×(-3)21 9
=-1×9×9
=-81;
(2)(-2)÷[(-
)2×(1 2
)3]×|-1 2
|-(-5)25 4
=(-2)÷[
×1 4
]×1 8
+525 4
=(-2)×32×
+525 4
=-400+5
=-395.
计算: (1)-12÷
(2)(-2)÷[(-
|
(1)-12÷
×(-3)21 9
=-1×9×9
=-81;
(2)(-2)÷[(-
)2×(1 2
)3]×|-1 2
|-(-5)25 4
=(-2)÷[
×1 4
]×1 8
+525 4
=(-2)×32×
+525 4
=-400+5
=-395.