1、x/x-3=x+1/x-1
1、x/x-3=x+1/x-1
2、x/x-1-3/1-x=4
3、x^2-4x=5
4、3x^2-6x+1=0
还有一个解不等式:5x-12>2(4x-3)
2、x/x-1-3/1-x=4
3、x^2-4x=5
4、3x^2-6x+1=0
还有一个解不等式:5x-12>2(4x-3)
数学人气:321 ℃时间:2020-06-06 08:40:42
优质解答
1、x/x-3=x+1/x-1(x-3)(x+1)=x(x-1)x²-2x-3=x²-xx=-3检验2、x/x-1-3/1-x=4x/(x-1)+3/(x-1)=4x+3=4x-43x=7x=7/33、x^2-4x=5x²-4x-5=0(x-5)(x+1)=0x=5,x=-14、3x^2-6x+1=0x²-2x=-1/3x²-2x+1...
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