x^2-4x+1因式分解_数学解答

x^2-4x+1因式分解

人气：193 ℃　时间：2020-02-03 04:45:34

解答

x²-4x+1
=x²-4x+4-4+1
=(x²-4x+4)+(-4+1)
=(x-2)²-3
=[(x-2)+√3][(x-2)-√3]
=(x-2+√3)(x-2-√3)