计算:3/(2x+4)-6/(4-x^2)+1/(x-2);(3x/(x-2)-x/(x+2))*(x^2-4)/x.

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计算:3/(2x+4)-6/(4-x^2)+1/(x-2);(3x/(x-2)-x/(x+2))*(x^2-4)/x.计算:3/(2x+4)-6/(4-x^2)+1/(x-2);(3x/(x-2)-x

计算:3/(2x+4)-6/(4-x^2)+1/(x-2);(3x/(x-2)-x/(x+2))*(x^2-4)/x.
计算:3/(2x+4)-6/(4-x^2)+1/(x-2);(3x/(x-2)-x/(x+2))*(x^2-4)/x.

计算:3/(2x+4)-6/(4-x^2)+1/(x-2);(3x/(x-2)-x/(x+2))*(x^2-4)/x.
3/(2x+4)-6/(4-x^2)+1/(x-2)=5/(2(x-2))
(3x/(x-2)-x/(x+2))*(x^2-4)/x=2x+4