22.计算x(3x^2+2x+2)-x^2(3x+2)
x/x-3-5x/x^2-x-6计算
计算: (x+3)(x²-x-2)
计算 (x+3)(x²-x-2)
计算:(x+2)/(x^2 - x - 6) + 2x/(x^2 - 3x) - x/(x^2 - 6x + 9)
计算 x(x+3)-(x-1)(x-2)
计算:[x/(x^-3x)](x^2-9)
如何计算 (x+1)(x+2)(x+3)(x+4)
计算:(x+1)(x-2)(x-3)(x-6)
计算:3x/x-5-2x/5-x
计算2x X 4x--3x=
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计算x/(x^2-1) + (x^-x+1)/(x^3-x^2+x-1)+(x^2+x+1)/(x^3+x^2+x+1)