问题
解答题
化简: (1)5
(2)(
|
答案
(1)原式=5
+22
-7×32 2
=7
-212 2
=-14
;2
(2)原式=(5+2
)(5-26
)6
=52-(2
)26
=25-24
=1.
化简: (1)5
(2)(
|
(1)原式=5
+22
-7×32 2
=7
-212 2
=-14
;2
(2)原式=(5+2
)(5-26
)6
=52-(2
)26
=25-24
=1.