y=2x+3则f(x²-1)=2(x²-1)+3=2x²+1g(2x-1)=2x²+1=1/2(4x²-4x+1)+2x+1/2=1/2(4x²-4x+1)+(2x-1)+3/2=(2x-1)²/2+(2x-1)+3/2则 g(x)=x²/2+x+3/2所以 g(x+1)=(x+1)²/2+(x+1)...