(x-3/x+3+6x/x²-9)÷1/x²-9化简就行

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(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
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(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
(x-3/x+3+6x/x²-9)÷1/x²-9
化简就行

(x-3/x+3+6x/x²-9)÷1/x²-9化简就行
[(x-3)/(x+3)+6x/(x²-9)]÷1/(x²-9 )
= {(x-3)²/[(x+3)(x-3)]+6x/(x²-9)]÷1/(x²-9 )
={(x-3)²+6x]/(x²-9)}÷1/(x²-9 )
=(x-3)²+6x
=x²-6x+9+6x
=x²+9

(x-3/x+3+6x/x²-9)÷1/x²-9
=[(X-3)²/(X+3)(X-3)+6x/(x²-9)]*(x²-9)
=[(X-3)²/(x²-9)+6x/(x²-9)]*(x²-9)
=(X-3)²+6X
=X²-9

原式是[(x-3)/(x+3)+6x/(x²-9)]÷1/(x²-9)吧?
原式=[(x-3)²+6x]/(x²-9)÷1/(x²-9)
=x²-6x+9+6x
=x²+9