问题
解答题
计算: (1)
(2)
|
答案
(1)原式=3
×22
×5
×56 3
=30×
×5
×2
×2
×3 3
=180
;5
(2)原式=-
×4
×5 3 6 5 2
=-
×42 2
=-8.
计算: (1)
(2)
|
(1)原式=3
×22
×5
×56 3
=30×
×5
×2
×2
×3 3
=180
;5
(2)原式=-
×4
×5 3 6 5 2
=-
×42 2
=-8.