1xx xx2 xx5xxx 1x5 9xx3xx xxx 24xxxx xx3 7x9xxx x9x 6x4xxx 2xx 85xxxx 376 xxx9xx xx8 xx2xxx 9xx x37

1xx xx2 xx5xxx 1x5 9xx3xx xxx 24xxxx xx3 7x9xxx x9x 6x4xxx 2xx 85xxxx 376 xxx9xx xx8 xx2xxx 9xx x37 XXX XX6 XX1 9XX XX1 376 71X X4X XX9 17X 8XX XX3X3X XXX XXX 6XX X13 X58XXX X3X 165 351 XXX XX2 8XX 1XX XXX xx3 xxx 7xxx6x x49 xxxxxx 8xx 1x6xx8 2xx xx1xx5 314 9xx3xx xx7 6xx1x9 xx2 xxxxxx 69x x8xxx6 xxx 3xx“x”为要填的数字, 解一道数独题x2x xx5 xxxxxx x1x xxxx8x 2xx x79xx3 9x1 xxxxx9 xxx 2xxxxx 4x8 1xx65x xx2 x8x xxx x3x xxxxxx 7xx x4x the concept of xx 还是concept of xx比方说在做总体的introduction的时候 1 the concept of xx or concept of xx2 The most popular recreational activities :sports3My favorite recreational activities :American TV series 一整个九宫格是9*9的 每个小的方框（3*3 我有用线分开了）里都要有1-9这九个数字 每一竖下来也是横的也是6xx xxx x27xxx 51x xxx7xx 8xx xx954x x7x xxxxxx 4x8 xxxxxx x3x x823xx xx2 xxxxxx x63 xxx96x 求独数 九宫格[XXX][7X3][XXX][X83][XXX][72X][9XX][XXX][XX4][XX9][6X8][2XX][X6X][X5X][X1X][XX1][9X4][5XX][6XX][XXX][XX3][X58][XXX][19X][XXX][1X5][XXX] Xx2.25%x（1-20%）+x=81440, xx8 xx7 xxx9x4 x5x xx1x61 xx2 xxxxxx 73x 6x4xxx x1x xxx5x7 x28 xxxxxx 9xx 42x1xx x6x 7x3xxx 5xx 8xx 1x5+2x5+3x5+4x5+5x5… 麻烦给我一个公式. 设y=x2+ax+b,集合A={x/y=x}={a},M={(a,b)},求My=xx2+ax+b=xx^2+(a-1)x+b=0于是2a=1-a a^2=b解得,a=1/3 b=1/9M={(1/3,1/9)}这里的（a-1)是哪里来的 2/(3/4-1/6)x5/9 x5+x4+1因式分解 因式分解x5+1 因式分解：x5+x3+1 因式分解 x5次方-1 (7.5/1+5/1)+5/1(x-1)=1 80/xX2+80/x+5 x8=4/3 (xx+x5+x5)2=100方程解答