一.解答题
1.计算:
(1)(2)(﹣2m2n﹣2)2?(3m﹣1n3)﹣3 2.计算:
3.化简:.
4.(2007?双柏县)化简:
5.(2006?襄阳)计算:.
6.(2005?江西)化简?(x2﹣9)
7.(2007?北京)计算:.
8.(2005?宜昌)计算:+.
9.(2001?吉林)计算:(1);(2).10.(2001?常州).
11.计算:
12.计算:﹣a﹣1.
13.计算:
(1)(2)
14.计算:a﹣2+
15.计算:.
16.化简:,并指出x的取值范围.
17.已知ab=1,试求分式:的值.
18.计算:﹣
19.(2010?新疆)计算:
20.(2009?太原)化简:
21.(2009?上海)计算:.
22.(2009?眉山)化简:
23.(2009?江苏)计算:(1);(2).
24.(2009?东营)化简:
25.(2008?白银)化简:.
26.(2007?南昌)化简:
27.(2007?巴中)计算:
28.(2006?宜昌)计算:()÷
.
29.(2006?十堰)化简:.
30.(2006?南充)计算:﹣x ﹣2)
31.(2015?眉山)计算: 1
121222-+÷+--x x
x x x x
32.(2015?宜昌)化简:12
1
122
2++-+-x x x x
33.(2015?厦门)计算:12
1++++x x x x
34.(2015?柳州)计算:a a a 1
1+-
35.(2015?佛山)计算:4
8
222---x x
36.(2015?福州)化简:2
22222)(b
a ab
b a b a +-++
37.(2015?宜宾)化简:1
)1111(222--÷---a a
a a a
38.(2015?青岛)化简:n
n n n n 1
)12(2-÷++
39.(2015?重庆)化简:1
22
)1112(2
++-÷+-+-x x x x x x
40.(2015?泸州)化简:)11
1(1
22
2+-÷++m m m m
41.(2015?扬州)化简:)11
11(12---+÷-a a a a a
42.(2015?滨州)化简:)3
1
31(96262
+--÷+--m m m m m
43.(2015?广西)化简:2
1
)12(22-÷-+a a a a
44.(2015?连云港)化简:m
m m m +-÷++224
)111(
45.(2015?成都)化简:2
1
)412(2+-÷
-++a a a a a
46.(2015?重庆)计算:y
y y y y y ++-÷+--2
29
6)181(
47.(2015?南京)计算:b
a a a
b a b a +÷---)12(222
48.(2015?南充)计算:a
a a a --?
--+34
2)252(
49.(2015?巴中)化简:1
22
142122
2+--÷---+a a a a a a a
50.(2015?十堰)化简:)2
1()1(2a
a a a -+
÷-