（2+1）（2^2+1)X(2^4+1)(2^8+1).(2^2048+1)=?用乘法公式计算

*-----------------------------------------------*| 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 || 1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做 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 x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 (x-1)^3(x+1)（x-2）/(x+4) （x+2)(x-2)+16 (x-1)(x-2)+3x（x+3）-4（x+2)(x-3)（x+2)(x-2)+16 (x-1)(x-2)+3x（x+3）-4（x+2)(x-3) x^5-x^4+x^3-x^2+x-1 x^6-x^5+x^4-x^2+x-1 计算：（x+2/x^2-2x-x-1/x^2-4x+4）×x/4-x （x+2/x^2-2x-x-1/x^2-4x+4）/x-4/x因式分解 （x+1)(x+2)(x+3)(x+4）+1(x+1)(x-2)(x+3)(x-4)+25 计算.（1+2/x-x+1/x-2）除以x+4/x平方-2x 计算.（1+2/x-x+1/x-2）除以x+4/x平方-2x 化简[(x+2）/（x²-2x)+(x-1)/(x²-4x+4)]除以（x-4)/x [（x+2）/(x²+2x)-(x-1)/(x²-4x+4)]÷(x-4)/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 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 计算（x*x+4x+5）/（x+2）-（x*x+6x+10）/（x+3）+1