解:16-16x+4x²=36x²-4x+4=9[x-2]²=9x-2=正负3x1=5x2=-1望采纳,谢谢!
16-16x+4x^2=364x^2-16x-20=0x^2-4x-5=0(x+1)(x-5)=0所以x+1=0,或x-5=0所以x=-1,或x=5望采纳
16-16x+4x²=36x²-4x-5=0(x+1)(x-5)=0 所以x=-1或者x=5 望采纳