化简(x-2分之3x-x+2分之x)×x分之x2-4
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化简(x-2分之3x-x+2分之x)×x分之x2-4化简(x-2分之3x-x+2分之x)×x分之x2-4化简(x-2分之3x-x+2分之x)×x分之x2-4原式=[3x/(x-2)-x/(x+2)]×
化简(x-2分之3x-x+2分之x)×x分之x2-4
化简(x-2分之3x-x+2分之x)×x分之x2-4
化简(x-2分之3x-x+2分之x)×x分之x2-4
原式=[3x/(x-2)-x/(x+2)]×[(x²-4)/x]
=[3x(x+2)/(x²-4)-x(x-2)/(x²-4)]×[(x²-4)/x]
=(3x²+6x-x²+2x)/x
=(2x²+8x)/x
=x(2x+8)/x
=2x+8
-(2X+4)
原式=[3x/(x-2)-x/(x+2)]×[(x²-4)/x]
=[3x(x+2)/(x²-4)-x(x-2)/(x²-4)]×[(x²-4)/x]
=(3x²+6x-x²+2x)/x
=(2x²+8x)/x
=x(2x+8)/x
=2x+8