化简到一元二次方程,求
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化简到一元二次方程,求
化简到一元二次方程,求
化简到一元二次方程,求
x-4(kx-3k-1)=0
[x-2(kx-3k-1)][x+2(kx-3k-1)]=0
[(1-2k)x+3k+1][(1+2k)x-3k-1]=0
x1=(3k+1)/(2k-1);
x2=-(3k+1)/(2k+1)