问题
解答题
计算了列各题: (1)
(2)
|
答案
(1)原式=-
×3×3 5
=-15×20÷6
×59 5
=-92
;2
(2)原式=a
-a3a
+a3a
-83a
=(a-8)3a
.3a
计算了列各题: (1)
(2)
|
(1)原式=-
×3×3 5
=-15×20÷6
×59 5
=-92
;2
(2)原式=a
-a3a
+a3a
-83a
=(a-8)3a
.3a