问题
解答题
计算: (1)
(2)
(3)(2
|
答案
(1)原式=5
-2
+62
=102
;2
(2)原式=
× 2
+2
×2
-6
=2+23
-3
=2+3
;3
(3)原式=(2
)2-12=12-1=11.3
计算: (1)
(2)
(3)(2
|
(1)原式=5
-2
+62
=102
;2
(2)原式=
× 2
+2
×2
-6
=2+23
-3
=2+3
;3
(3)原式=(2
)2-12=12-1=11.3