x-1\x^3-x,x+1\x^3-x1\2xx-y\x+y 先因式分解再通分和约分通分和约分的过程能详细列出来吗？谢谢。1　　1／x²＋x=1/x(x+1)=x-1/x(x+1)(x-1)=x-1\x^3-x 1／x²－x=1/x(x-1)=x+1/x(x+1)(x-1)=x+1\x^3-x2 x²－3／2x³－6x=x^2-3/2x(x^2-3)= 1\2x3x²-2xy＋y²／x²-y² =(x-y)^2/(x-y)(x+y)=x-y\x+y给个采纳