问题
解答题
计算: (1)(12a3+6a2-3a)÷3a (2)|
|
答案
(1)(12a3+6a2-3a)÷3a,
=12a3÷3a+6a2÷3a-3a÷3a,
=4a2+2a-1;
(2)原式=
-3
+2
,2
=
.3
计算: (1)(12a3+6a2-3a)÷3a (2)|
|
(1)(12a3+6a2-3a)÷3a,
=12a3÷3a+6a2÷3a-3a÷3a,
=4a2+2a-1;
(2)原式=
-3
+2
,2
=
.3