题目内容
????????x-y=
-8
【解析】略
f(x)=??f(x)=10,??x=_________.
??f(52x-1)=x-2,??f(125)=______________
??f(10x)= x, ??f(5) =
???f(x)=x2-2x+1??=( )
A.0 B.4 C .7 D.2
???A(1,2),P(x,y)????, ??_________
??
??x-y= 
????x-y= 
??f(x)=10,??x=_________.
=( )
, ??
_________