若2＜x＜5,则化简|x-5|+|x-2|得_________________.

*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x x(9x-5)-5＜3x(3x-2)+3(x-1) 求函数f(x)=(x+5)(x+2)/(x+1),(x＜-1)的最大值 若2＜x＜5,则化简|x-5|+|x-2|得_________________. (x-5)(x-2) (x-5)(x+2) 解不等式-X/5-[3-2X]/2＜X 已知x＜-5,化简|x+2|-|x-3| 通分x+4/x*x+4x与x-5/x(x-5)-2(x-5) x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 (x+3x+5x...+2009x)-(2x+4x+6x+...+2010x) 若x²+px+q＜0的解集为{x|1＜x＜2},则不等式x²+px+q/x²-5x-6＞0的的解集为（1） x(x+1)(x-2)除以(x+2)(x-1)≥0 （2） (x+1)²(2-x)除以x(4+x)≥0 x/x-3-5x/x^2-x-6计算 x^5-x^4+x^3-x^2+x-1 x^6-x^5+x^4-x^2+x-1 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X 计算:x/x-2 - 5x/x²-x-6计算:x/x-3 - 5x/x²-x-6