40*1/120+x（1/100+1/120）=1

x{x+1}{x-1}}x-2}{x-3}-40 x(x-1)(x-2)...(x-99)(x-100) x/x+(1-x)/x-1/x 怎样计算百分数的方程120-25%x=100x+13%x-28%x=3.4(1-40%)x=720x-95%x=155 x(x+1)(x-1)=120 *-----------------------------------------------*| 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 解方程；x-1/3x-40%x=100 x*(1+40/100)*0.8-x=15 X=? (x+1)(x-1)(x-x+1)(x+x+1) 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+1)(x+2)(x+3)(x+4)-120 因式分解（X+1)(X+2)(X+3)(X+4)-120 因式分解（x+1)(x+2)（x+3)(x+4)-120 数学(X+1)(X+2)(X+3)(X+4)-120 分解因式----（X*X-X)(X*X-X-2)+1 x{x+1}{x-2}{x-3}-40 分解因式:x(x-1)(x+2)(x+3)-40