令x=0则题意给出的第二个烂盯瞎饥空式子则扰可写为f(y/2)=1+y(y+1)令x=y/2可得f(x)=1+2x(2x+1)=4x^2+2x+1
令x=0,y=2x,则f(x)=f(0)+2x(2x+1)=4x^2+2x+1
令X=0,可得f(y/2)=y*y+y+1,整理得:f(x)=4x*x+2x+1