解方程a²(x²-x+1)-a(x²-1)=(a²-1)x还有一道(m²-n²)x²-4mnx=m²=n²(m²-n²≠0)
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解方程a²(x²-x+1)-a(x²-1)=(a²-1)x还有一道(m²-n²)x²-4mnx=m²=n²(m²-n²≠0)
解方程a²(x²-x+1)-a(x²-1)=(a²-1)x
还有一道(m²-n²)x²-4mnx=m²=n²(m²-n²≠0)
解方程a²(x²-x+1)-a(x²-1)=(a²-1)x还有一道(m²-n²)x²-4mnx=m²=n²(m²-n²≠0)
经整理得(a²-a)x²-x-(a²-a)=0
之后就可以根据公式法求二次方程的根了