问题 填空题
计算:(
2007
-3)0+(
1
2
) -2=______.计算:
x2
x-2
-
4
x-2
=______.
答案

2007
-3)0+(
1
2
-2=1+4=5;

x2
x-2
-
4
x-2
=
x2-4
x-2
=
(x+2)(x-2)
x-2
=x+2.

故答案为5,x+2.

计算题
问答题 简答题