问题
解答题
(1)
(2)
(3)
(4)
(5)(2
|
答案
(1)原式=3
-62
+52
=22
;2
(2)原式=3
-3
+23 3
=3 14 3
;3
(3)原式=3-2=1
(4)原式=3
-5;2
(5)原式=12-18=-6.
(1)
(2)
(3)
(4)
(5)(2
|
(1)原式=3
-62
+52
=22
;2
(2)原式=3
-3
+23 3
=3 14 3
;3
(3)原式=3-2=1
(4)原式=3
-5;2
(5)原式=12-18=-6.