问题
解答题
计算 (1)(-
(2)(
(3)a4-a4+(a2)4-(-3a4)2 (4)(-8)2009×0.1252010. |
答案
(1)原式=(-
)3=-2 3
;8 27
(2)原式=4-1÷
=4-9=-5;1 9
(3)原式=a8+a8-9a8=-7a8;
(4)原式=(-8×0.125)2009×0.125=-0.125.
计算 (1)(-
(2)(
(3)a4-a4+(a2)4-(-3a4)2 (4)(-8)2009×0.1252010. |
(1)原式=(-
)3=-2 3
;8 27
(2)原式=4-1÷
=4-9=-5;1 9
(3)原式=a8+a8-9a8=-7a8;
(4)原式=(-8×0.125)2009×0.125=-0.125.