问题
解答题
计算: (1)
(2)(-
|
答案
(1)原式=2
-3x 1 2
+2x 1 9
-53x 2x
=
-19 3x 9
;11 2x 2
(2)原式=1+
+2
+2-3 3
=3+
.2
计算: (1)
(2)(-
|
(1)原式=2
-3x 1 2
+2x 1 9
-53x 2x
=
-19 3x 9
;11 2x 2
(2)原式=1+
+2
+2-3 3
=3+
.2