作业帮求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
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求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
（X²+3X+9/X²-27)+(6X/9X-X²)-(X-1/6+2X)
=X²+3X+9/X²-27+6/9-X²-X+1/6+2X
=9/X²-157/6
兄弟，再看一遍是不是题出错了
应该是x^3-27吧？
确定是x^2+3x+9？
这个方程无实数解啊
x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
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x×x+3x-9/ x+2
求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
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