问题
解答题
计算: (1)
(2)
|
答案
(1)原式=5
+43
-123
+3 3
=-2
;3
(2)原式=
•(-2 b
)•3•3 2 ab5•a3b• a b
=-
•9 b a4•b4•ab
=-9a2b
.ab
计算: (1)
(2)
|
(1)原式=5
+43
-123
+3 3
=-2
;3
(2)原式=
•(-2 b
)•3•3 2 ab5•a3b• a b
=-
•9 b a4•b4•ab
=-9a2b
.ab