问题
填空题
化简:(1)
|
答案
(1)
=7 3- 2
=3+7(3+
)2 (3-
)(3+2
)2
;2
(2)
=3 5+ 7
=
(5-3
)7 25-7
.5
-3 21 18
故本题答案为:(1)3+
;(2)2
.5
-3 21 18
化简:(1)
|
(1)
=7 3- 2
=3+7(3+
)2 (3-
)(3+2
)2
;2
(2)
=3 5+ 7
=
(5-3
)7 25-7
.5
-3 21 18
故本题答案为:(1)3+
;(2)2
.5
-3 21 18