x²-3x+1因式分解
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x²-3x+1因式分解x²-3x+1因式分解x²-3x+1因式分解原式=x²-3x+(3/2)²-(3/2)²+1=(x-3/2)²
x²-3x+1因式分解
x²-3x+1因式分解
x²-3x+1因式分解
原式=x²-3x+(3/2)²-(3/2)²+1
=(x-3/2)²-(√5/2)²
=[(x-3/2)+√5/2][(x-3/2)-√5/2]
=(x-3/2+√5/2)(x-3/2-√5/2)