化简|X-3|+(x-3)
化简(X+2)\(X^2+X)+(2X+1)\(X^2+3X+2)-(X-3)\(X^2+2X)
(x^3-3x^2-x+3)/(x-2)化简~
-(x²-2x)+(-3x+2x²)化简!
(x+2x+3x+.100x )化简
(x+2)(x-2)+x(3-x)化简
x^2+2x/3x^2+x-10化简
化简[(2X-3/X)-1]/(X平方-9/X)
化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)
化简:1x(x+1)+1(x+1)(x+2)+1(x+2)(x+3)+1(x+3)(x+4)
化简:1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+...+1/(x+8)(x+9)
化简:1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.+1/(x+2007)(x+2008)
化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)