6x
*-----------------------------------------------*| 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 ||
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
x²+x-6
x-x^2/6
x-x^2/6
x²+x-6
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
约分:1、x*x-9/6-2x 2、x*x-1/x-x*x
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
-x(x+6)>3x-(x-3)(x+4)
x/x-3-5x/x^2-x-6计算
(x-3)(x+3)-x(x+6)>3x
x^6-x^5+x^4-x^2+x-1
计算:x/x-2 - 5x/x²-x-6计算:x/x-3 - 5x/x²-x-6
跪求1到6年级语文书(人民教育出版社)上的日积月累以及古诗词格式:一年级上下册古诗词:X X X X X X X X X X 二年级上下册古诗词:X X X X X X X X X X 三年级上下册古诗词:X X X X X X X X X X .(