x²-3x+1因式分解
问题描述:
x²-3x+1因式分解
答
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)
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)