问题
解答题
计算: (1)
(2)
|
答案
(1)原式=
+4 44 34
=3 - 23 33
-4 4 4 3 4 4 2 3
=
-4 3 2 3
=
;2 3
(2)原式=(
)2-2×3
×3
+(2
)22
=(
-3
)22
=
-3
.2
计算: (1)
(2)
|
(1)原式=
+4 44 34
=3 - 23 33
-4 4 4 3 4 4 2 3
=
-4 3 2 3
=
;2 3
(2)原式=(
)2-2×3
×3
+(2
)22
=(
-3
)22
=
-3
.2