x^4+ax^3+3x^2+5x^3-7x^2-bx^2-6x-2合并同类项后,不含x^3与x^2,求a+b急··

*-----------------------------------------------*| 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 || 若多项式2x*x*x*x-3x*x*x+ax*x+7x+b能被x*x+x-2整除,求a:b (x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10)请化简我说的是化简化成x^10+ax^9+bx^8+cx^7+......+n的形式 {x|ax²+ax-3 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 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 1.合并同类项 (1)-3a+5a-6a (2)2ax-7ax (3)2x+1-3x+7-3x+5x (4)7xy-x+2x-5xy-3x 难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 1.（x^2-3x-3)（x^2+3x+4)-82.(2x-7)(2x+5)(x^2-9)-913.x^4+x^2-2ax-a^2+1 (7-2x+x^2)-(5+3x-2x^2)=-(x^3+2x^2-1)+(x^3-2x^2+x-2)=(2ax-3by-5)-2(ax-2)+(-2by+1)= 如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x 合并同类项:5a-3x+4a+8x-5ax-2x 2x²-5x-ax+3a-3 因式分解 解九宫格题目（X为未知数）9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 ax已知x·x+3x-2=0,求2·x·x·x+6·x·x-4x的值. 分解因式：2x^3+x-3还有x^2+2x-15-ax-5a 2x+3x+4x+5x+x+6x+7x=100