若2x+1＜x+5,2x-27＞x-2a的整数解之和为5,求a的

*-----------------------------------------------*| 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(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 1.-X^2+X≥3x+12.x（x+9)≤3（x-3）3.X^2-2x＜2X^2+2解题格式一定要写好哦4.-x+1/2x+5≥05.（m-2)x＞1-m6.X^2-（a-3）X-3a＜07.X^2-(a+1/a）x+1＞0 x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1) 若集合A=｛x|x^2-x＜0｝,B={x|(x-a)(x+1) a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3 x^2+x+a (x-a)(x-2) x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 函数f(x)=a^2x^2-3X+1,g(x)=a^x^2=2x-5(a＞0,a≠1),若f(x)＞g(x),求x的取值范围正确：函数f(x)=a^2x^2-3X+1,g(x)=a^x^2+2x-5(a＞0，a≠1)，若f(x)＞g(x),求x的取值范围 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 已知集合A={x|（x+1）（5-x）＞0,x属于R},B={x|x^2-2x-m＜0,x属于R}.若A交B=(-1,4)已知集合A={x|（x+1）（5-x）＞0,x属于R},B={x|x^2-2x-m＜0,x属于R}.若A交B=(-1,4),求实数m 若f(x)={a'x(x>1),(4-a/2)x+2(x 七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式：X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X. 计算题：① ＜(x-1／x+1)-(x+1／x-1)＞÷x+3/x*x+4x+4)② (a*a-2ab+b*b)/(a*a+ab)*(a+b)/(ab-b*b)③ (2x/x*x-1)-1/(x-1)④ -a-6约分：① 1/2*x*x*y ,1/3*x*y*y② 1/(2x+2) ,3/(x*x-1)化简：① (3+x)/(2+x)+(x*x-4)