(x^3-9)÷(x^2+3).

x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)前面多项

填九宫格帮帮忙.xx6xx7xx98xxx3x1xx9xx6x5x3xxx3xxxx18xxx9x1xxx21xxxx6xxx6x7x3xx1xx9x2xxx47xx8xx5xx填九宫格帮帮忙.xx6

x×x+3x-9/x+2x×x+3x-9/x+2x×x+3x-9/x+22分米=20厘米上升的水体积3.14×20×20÷4×1.23.14×20×20÷4×1.2×3÷(3.14×5×5)=14.4

(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-

数学题x-15/x^2-9-2x/9-x^2÷x/3+x数学题x-15/x^2-9-2x/9-x^2÷x/3+x数学题x-15/x^2-9-2x/9-x^2÷x/3+x原式=[(x-15)/(x

x^2-x/x+1÷x/x+1；x^2+6x+9/x^2-9÷x+2/x-3；2/a÷4/ax^2-x/x+1÷x/x+1；x^2+6x+9/x^2-9÷x+2/x-3；2/a÷4/ax^2-x/x+

求一个数独答案XXX9XXX82X63XX14X99X8XXXXXXXXX67X3XXX46X5X29XXX7X23XXXXXXXXX7X17X43XX62X63XXX7XXX求一个数独答案XXX9X

x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1)=1/9x-3x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1

(1-x/3-x)^2÷(x^2-6x+9/9-x^2)*1/x^2-2x+1(1-x/3-x)^2÷(x^2-6x+9/9-x^2)*1/x^2-2x+1(1-x/3-x)^2÷(x^2-6x+9/

(x+1/x+3)²÷x²-1/x²-9·(x-2)(x+1)/x-3计算(x+1/x+3)²÷x²-1/x²-9·(x-2)(x+1)/x

难倒爱因斯坦的九宫格X7X|X81|XXX|XXX|X4X|759|XX5|7X9|X14|5XX|XX8|39X|396|4X7|XX2|X87|9XX|XXX|4XX|6X5|XXX|XX4|XX

x²＋2x/x²-6x+9÷x²-4/x²-3x,x²＋2x/x²-6x+9÷x²-4/x²-3x,x²＋2x

x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4

如下9*9宫图如何填xxx1xxx29xx5xxxxx4x68xxxxxxxxx7xx5xxx2xx6xx8xxx3xx9xxxxxxx5x16x4xxx3xxxx7xxxx2xxx如下9*9宫图如何

1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/（x^2-5x+6）+（x^2-3x+8）/（x^2-4x+3）2.{(x^2)/（x-y)}*{y/(x+y

[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+

化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)

x^2+9x/x^2+3x+x^2-9/x^2+6x+9x^2+9x/x^2+3x+x^2-9/x^2+6x+9x^2+9x/x^2+3x+x^2-9/x^2+6x+9=x(x+9)/x(x+3)+(

解九宫格题目（X为未知数）9X2X7X8XXXX4XX9X6X13X5XXXX24XX85XX1XX894X167XX1XX36XX88XXXX2X36X5X6XX9XXXX7X4X2X1解九宫格题目

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