计算分式方程2x/x²-1除以1/x+1-x/x-12x/x²-1除以1/x+1-x/x-1 ,
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![计算分式方程2x/x²-1除以1/x+1-x/x-12x/x²-1除以1/x+1-x/x-1 ,](/uploads/image/z/133582-22-2.jpg?t=%E8%AE%A1%E7%AE%97%E5%88%86%E5%BC%8F%E6%96%B9%E7%A8%8B2x%2Fx%26%23178%3B-1%E9%99%A4%E4%BB%A51%2Fx%2B1-x%2Fx-12x%2Fx%26%23178%3B-1%E9%99%A4%E4%BB%A51%2Fx%2B1-x%2Fx-1+%2C)
计算分式方程2x/x²-1除以1/x+1-x/x-12x/x²-1除以1/x+1-x/x-1 ,
计算分式方程2x/x²-1除以1/x+1-x/x-1
2x/x²-1除以1/x+1-x/x-1 ,
计算分式方程2x/x²-1除以1/x+1-x/x-12x/x²-1除以1/x+1-x/x-1 ,
2x/x²-1=2X/x²-1
1/x+1-x/x-1={(X-1)-X((X+}/X²-1
2x/(x²-1)÷{1/(x+1)-x/(x-1)}=2X/x²-1÷{(X-1)-X((X+1)}/X²-1
=2X/(X-1)-X(X+1)
=-2X/X²+1