问题
解答题
计算: (1)(
(2)2
(3)
(4)9
(5)
|
答案
(1)原式=
×8 3
-36
×3 6
=
-3
×68 3
×3
×3 2
=
-93 2
;2
(2)原式=4
+3×3
-2 3 3
-4 3 3 8 3 3
=2
;3
(3)原式=
+1+3-32
+22 2
=4;
(4)原式=27
÷5
×5 2 3 2 8 3
=27×3 2 5÷
×5 2 8 3
=
;162 3 3
(5)原式=1×
×1 3 1 2 3a2÷
×a 2 2a 3
=
×1 6 4a2
=
.a 3