(x+2)(x+3)(x-4)(x-5)-44

[(x+2)/(x+3)-(x+1)/(x+2)+(x+4)/(x+5)-(x+3)/(x+4)]/[(x的平方+7x+13)/(x的平方+8x+15)][(x+2)/(x+3)-(x+1)/(x+2

x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4(x+2)/(

(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)(x+3x+5x...+2009x)-(2x

x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1　　=x^4(x-1)+x^2(x-1)+(x-

(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10)请化简我说的是化简化成x^10+ax^9+bx^8+cx^7+......+n的形式(x+1)(x

7X4612XXXX2XXX3XXX5XXX97X6XXX672X51XXX2XXX6XXX15X467XXX3X86XXX9XXX1XXX7XXXX2758X1第二道~X9XX8XX1XX6XX2X

计算:[(x+2)/(x+3)-(x+1)/(x+2)+(x+4)/(x+5)-(x+3)/(x+4)/(x^2+7x+13)/(x^2+8x+15)计算:[(x+2)/(x+3)-(x+1)/(x+

计算(x+2)/(x+1)-(x+3)/(x+2)+(x+4)/(x+3)-(x+5)/(x+4)计算(x+2)/(x+1)-(x+3)/(x+2)+(x+4)/(x+3)-(x+5)/(x+4)计算

(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)(x-3/x-2)-(x-2/x-1)=(x-5

4x²-{-3x²-[5x-x²-(2x²-x)]+4x},其中x=½4x²-{-3x²-[5x-x²-(2x²

x-2x+3x-4x+5x.+99x-100x=25求解x-2x+3x-4x+5x.+99x-100x=25求解x-2x+3x-4x+5x.+99x-100x=25求解x(1-2+3-4+...+99

化简：x-2x+3x-4x+5x-.+2011x-2002x化简：x-2x+3x-4x+5x-.+2011x-2002x化简：x-2x+3x-4x+5x-.+2011x-2002xx-2x+3x-4x

2x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=10028x=100x

化简:X-2X+3X-4X+5X-……+2001x-2002x化简:X-2X+3X-4X+5X-……+2001x-2002x化简:X-2X+3X-4X+5X-……+2001x-2002xX-2X+3X

x-2x+3x-4x+5x+.+2007x-2008xx-2x+3x-4x+5x+.+2007x-2008xx-2x+3x-4x+5x+.+2007x-2008x-1004xx-2x+3x-4x+5x

x(x+1)+(x+2)+(x+3)+(x+4)+(x+5)=27求xx(x+1)+(x+2)+(x+3)+(x+4)+(x+5)=27求xx(x+1)+(x+2)+(x+3)+(x+4)+(x+5)

通分：(x+4)/(x^2-8x+15)、(x+5)/(x^2+x-12)和(x-3)/(x^2-x-20).先说他们的最小公分母是多少,再计算...通分：(x+4)/(x^2-8x+15)、(x+5

通分:x+4/x^2-8x+15,x-5/x^2+x-12,x-3/x^2-x-20通分:x+4/x^2-8x+15,x-5/x^2+x-12,x-3/x^2-x-20通分:x+4/x^2-8x+15

|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|的最小值谢谢了,大神帮忙啊如题|X-1|+|X-2|+|X-3|+|X-4|+|

|x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10|的最小值这类题该怎入手|x-1|+|x-2|+|x-3|+|x-4|+|x-5|