问题
解答题
计算: (1)(
(2)(
(3)6
|
答案
(1)原式=5-2-(3-2
+2)6
=5-2-3+2
-26
=2
-2;6
(2)原式=
-42 4
-3
+2 2
+42 3 3 2
=15 4
-2 10 3
;3
(3)原式=6
-62× 1 8
-82×6 3
=3-12
-83 3
=3-20
.3
计算: (1)(
(2)(
(3)6
|
(1)原式=5-2-(3-2
+2)6
=5-2-3+2
-26
=2
-2;6
(2)原式=
-42 4
-3
+2 2
+42 3 3 2
=15 4
-2 10 3
;3
(3)原式=6
-62× 1 8
-82×6 3
=3-12
-83 3
=3-20
.3