对于1/4x^2+5/2x-6=0 两边乘以4,得x^2+10x-24=0即(x+12)(x-2)=0解得x1=-12 ,x2=2
两边同乘4得x^2+10x-24=0,十字相乘得(x+12)(x-2)=0,所以x1=-12,x2=2
1/4x^2+5/2x-6=0 x^2+10x-24=0(x+12)(x-2)=0解得:x=-12 或 x=2
1/2X-6-3/4X=0求啊