计算:(x+2)/2x * (x^3 - 3x^2)/(x^2 + 5x + 6) * (x^2 + 2x - 3)/(x^3 - 9x)

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计算:(x+2)/2x*(x^3-3x^2)/(x^2+5x+6)*(x^2+2x-3)/(x^3-9x)计算:(x+2)/2x*(x^3-3x^2)/(x^2+5x+6)*(x^2+2x-3)/(x

计算:(x+2)/2x * (x^3 - 3x^2)/(x^2 + 5x + 6) * (x^2 + 2x - 3)/(x^3 - 9x)
计算:(x+2)/2x * (x^3 - 3x^2)/(x^2 + 5x + 6) * (x^2 + 2x - 3)/(x^3 - 9x)

计算:(x+2)/2x * (x^3 - 3x^2)/(x^2 + 5x + 6) * (x^2 + 2x - 3)/(x^3 - 9x)
就是因式分解
=(X+2)/2X*X^2(X-3)/(X+3)(X+2)*(X+3)(X-10/X(X+3)(X-3)
=(X-1)/2(X+3)

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