题目内容
计算:
(1)
+
(2)(-2m2n-2)2•(3m-1n3)-3
(3)(
)-2-23×0.125+(
)0+|2012|.
(1)
| 1 |
| a+3 |
| 6 |
| a2-9 |
(2)(-2m2n-2)2•(3m-1n3)-3
(3)(
| 1 |
| 2 |
| ||||
|
(1)原式=
=
=
;
(2)原式=4m4n-4•
m3n-9
=
m7n-13
=
;
(3)原式=4-8×0.125+1+2012
=4-1+1+2012
=2016.
| a-3+6 |
| (a+3)(a-3) |
=
| a+3 |
| (a+3)(a-3) |
=
| 1 |
| a-3 |
(2)原式=4m4n-4•
| 1 |
| 27 |
=
| 4 |
| 27 |
=
| 4m7 |
| 27n13 |
(3)原式=4-8×0.125+1+2012
=4-1+1+2012
=2016.
练习册系列答案
相关题目