问题
解答题
化简: (1)(
(2)
|
答案
(1)原式=(3
-22
+2
-3
)•2 3
=
•3 3
=3;
(2)原式=
•(
+2a
)(b
-2a
)b
-2a b 1 (
+2a
)2b
=1
+2a b
=
.
-2a b a-4b
化简: (1)(
(2)
|
(1)原式=(3
-22
+2
-3
)•2 3
=
•3 3
=3;
(2)原式=
•(
+2a
)(b
-2a
)b
-2a b 1 (
+2a
)2b
=1
+2a b
=
.
-2a b a-4b