x^2-4x+1因式分解

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x^2-4x+1因式分解x^2-4x+1因式分解x^2-4x+1因式分解x²-4x+1=x²-4x+4-4+1=(x²-4x+4)+(-4+1)=(x-2)²-

x^2-4x+1因式分解
x^2-4x+1因式分解

x^2-4x+1因式分解
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)