问题
解答题
(1)3
(2)9
(3)(
(4)
|
答案
(1)原式=6
+82
-52
=92
;2
(2)原式=9
-143
+203
=153
;3
(3)原式=(
)2-(2
) 2=2-5=-3;5
(4)原式=
×3
-48
×33
=48-1525
.3
(1)3
(2)9
(3)(
(4)
|
(1)原式=6
+82
-52
=92
;2
(2)原式=9
-143
+203
=153
;3
(3)原式=(
)2-(2
) 2=2-5=-3;5
(4)原式=
×3
-48
×33
=48-1525
.3