【2x＋3】【2x-3】-4x【x-3】＋【x-2】2

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

[(x+2)/(x+3)-(x+1)/(x+2)+(x+4)/(x+5)-(x+3)/(x+4)]/[(x的平方+7x+13)/(x的平方+8x+15)][(x+2)/(x+3)-(x+1)/(x+2

x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4(x+2)/(

(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)(x+3x+5x...+2009x)-(2x

(X-1)(X-2)=X*X-3X+2X*X-3X+2=(X-1)(X-3)X*X+4X+4=X(X-4)+4X*X+Y*Y=(X+Y)(X-Y)哪一个因式分解是正确的(X-1)(X-2)=X*X-3

x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1　　=x^4(x-1)+x^2(x-1)+(x-

(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+1)(x

x(x-2)(x-3)x(x-2)(x-3)x(x-2)(x-3)第一个x相当于(x-0),就可以了.x(x-2)(x-3)取点0,2,3所以,取值范围是x

{x|(x+3)(x-2){x|(x+3)(x-2){x|(x+3)(x-2)(x+3)(x-2)(x+3)(x-2)-3{X|-3解不等式（x+3）（x-2）＜0大于大的，小于小的。得x=-3x=2

-x^3+x^2-x-x^3+x^2-x-x^3+x^2-x-x^3+x^2-x=-x(x²-x+1)

(-x^4)^2-2(x^2)^3×x×x＋(－3x)^3×x^5(-x^4)^2-2(x^2)^3×x×x＋(－3x)^3×x^5(-x^4)^2-2(x^2)^3×x×x＋(－3x)^3×x^5原

7X4612XXXX2XXX3XXX5XXX97X6XXX672X51XXX2XXX6XXX15X467XXX3X86XXX9XXX1XXX7XXXX2758X1第二道~X9XX8XX1XX6XX2X

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

x+2x+3x+.+100xx+2x+3x+.+100xx+2x+3x+.+100x原式=（1+2+3+.+99+100）*X=[（1+100）*100/2]*X=5050X第一步到第二步是求和公式,

(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x因式分解(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x因式分解(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x因式

已知X=4-根号3求(X*X*X*X-6X*X*X-2X*X+18X+23)/(X*X-8X+15)的值紧急,,明天有用,,已知X=4-根号3求(X*X*X*X-6X*X*X-2X*X+18X+23)

x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)...(x-49)等于多少?x-1)(X-2)(x-3)...(x-50)+x(

(2x-6)/(4-4x+x^2)/(x+3)*(x^2+x-6)/(3-x)(2x-6)/(4-4x+x^2)/(x+3)*(x^2+x-6)/(3-x)(2x-6)/(4-4x+x^2)/(x+3

a+x/x+1,x/x^2-2x-3,a/x^2+4x+3a+x/x+1,x/x^2-2x-3,a/x^2+4x+3a+x/x+1,x/x^2-2x-3,a/x^2+4x+3你的题都写错了,还要人家帮

计算:[(x+2)/(x+3)-(x+1)/(x+2)+(x+4)/(x+5)-(x+3)/(x+4)/(x^2+7x+13)/(x^2+8x+15)计算:[(x+2)/(x+3)-(x+1)/(x+