x-(x/2+10)-{[x-(x/2+10)]/2+5}=80 怎么解

300字读后感 2篇 俄把格式说一下吧：《xxxx》（写题目）主要内容：x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容）思考分析：x x x *-----------------------------------------------*| 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 || 分解因式：x*x*x*x+2*x*x*x-9*x*x-2x+8 x(x*x-6x-9)-x(x*x-8x-15)+2x(3-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 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. (x^2-x)^2-18(x^2-x)+72(x+1)(x+2)-x-10 (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2 (x-1)/(x+3x+2)+6/(2+x-x)-(10-x)/(4-x) 因式分解(x+1)(x+2)-x-10(x²-x)²-18(x²-x)+72 解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1 X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4) (x/x-2-x/x+2)/4x/x-2 分解因式----（X*X-X)(X*X-X-2)+1 x^2+10x( )=(x+ )^2 x^2-10x=2-x (X-2)(X+3)+3x+10 2x×x=10,求x