设F(x)=ax+bF[F(x)]=a(ax+b)+b=9x+8所以9x=a(ax+b),b=8,将b=8代入9x=a(ax+b),9x=a(ax+8)9x=a方x+8a0=a方x+8a-9xa=[-4+(4-3x)]/x或x=[-4-(4-3x)]/xy=log 2 (x/4) * log 4 (x/2)=log 2 (x/2) * log 2方 (x/2)=[ log 2 ...