题目内容
设f(x)=2x+3,g(x)=f(x-2)则g(x)等于
2x+1
2x-1
2x-3
2x+7
设f(x)=2x+3,g(x+2)=f(x),则g(x)等于
A.2x+1 B.2x-1 C.2x-3 D.2x+7
设f(x)=2x+3,g(x+2)=f(x),则g(x)= ( )
A.2x+1 B.2x-1
C.2x-3 D.2x+7
设f (x)=2x+3,g (x+2)=f (x),则g (x)=( )