问题
解答题
(1)
(2)(
(3)
(4)2
|
答案
(1)原式=
+26
=36
;6
(2)原式=(
)2-(5
)2+2=5-7+2=0;7
(3)原式=
-1=2
-3 3 3
-1=1-1=0;3 3
(4)原式=2
+33
-3
=2 3 3
.13 3 3
(1)
(2)(
(3)
(4)2
|
(1)原式=
+26
=36
;6
(2)原式=(
)2-(5
)2+2=5-7+2=0;7
(3)原式=
-1=2
-3 3 3
-1=1-1=0;3 3
(4)原式=2
+33
-3
=2 3 3
.13 3 3