化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x)

化简(x^2+3x+9)/(x^3-27)+(6x)/(9x-x^2)-(x-1)/(6+2x) 化简~(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)(x²+3x+9/x²-27)+(6x/9x-x²)-(x-1/6+2x)注意了!是三个分式!(x²+3x+9)/(x²-27)+(6x)/(9x-x²)-(x-1)/(6+2x) 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 x×x+3x-9/ x+2 (x^2+3x+9)/(x^2-9)+6x/(9x-x^2)-(x-1)/(6+2x)化简 求化简：（x^2+3x+9)/(x^2-27)+(6x)/(9x-x^2)-(x-1)/(6+2x) 化简：1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+...+1/(x+8)(x+9) 化简1/[x(x+2)]+1/[(x+1)(x+3)]+1/[(X+2)(X+4)].+1/[(X+9)(X+11)] x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x) 化简X-X^2-X^3-X^4-...X^9+X^10 化简（x+2)(x的平方-6x-9）-（x-5)(x-3)x 化简：(x^2+3x+9)/(x^3-27)+6/（9-x^2)-(x-1)/(6+2x) 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 化简 3x(x^2-x-1)-(x+1)(3x^-x) X^3(x-y)+x(y-x) *-----------------------------------------------*| 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 || 化简：[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x＞3} 几道初中数学题..要有过程 注：x^2 表示x的2次方1.化简：(9x^2+3x)/(x^2+6x+9) * (x^3+27)/(x^2-3x) ÷ (x^2-3x+9)/(x^2-9)2.化简x - x÷{(x^2-y^2)/(x^3+y^3) * [(x-(x^2+y^2)/y ) ÷ (1/x - 1/y)3.化简分式： (x^3 + 5x^2 + 3x - 9)/(x^3