【2x+3】【2x-3】-4x【x-3】+【x-2】2

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【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)x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)前面多项式提取公因式x就有前面两个式子合并为:x

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

[(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+4)/(x+5)-(x+3)/

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

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

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

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

(X-1)(X-2)=X*X-3X+2 X*X-3X+2=(X-1)(X-3) X*X+4X+4=X

(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-3X+2X*X-3X+2=(X-1)(X-

x^5-x^4+x^3-x^2+x-1

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

(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10

(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+2)(x+3)(x+4)(x+5)(x

x(x-2)(x-3)

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|(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=2-3<x<2所以解得集合(-3,2)

-x^3+x^2-x

-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(-x^4)^2-2(x^2)^3×x×x+(-3x)^3×x^5原式=x^8-2x^8-27x^8=(1-

7 X 4 6 1 2 X X XX 2 X X X 3 X X X 5 X X X 9 7 X 6

7X4612XXXX2XXX3XXX5XXX97X6XXX672X51XXX2XXX6XXX15X467XXX3X86XXX9XXX1XXX7XXXX2758X1第二道~X9XX8XX1XX6XX2XX4X1XXXXXXX595X734X6

x×x+3x-9/ x+2

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答:圆锥高是14.4厘米=(x×x+3x

x+2x+3x+.+100x

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,(首项+末项)*项数/2假设x=1,结果

(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因式分解(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x因式分解(x²-3)²-

已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-

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*X-8X+15)的值紧急,,明天

x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x

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(x-2)(X-3)...(X-50)+.

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

a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+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,还要人家帮你.不好意思,看不懂您的题目……

计算:[(x+2)/(x+3) - (x+1)/(x+2) + (x+4)/(x+5) - (x+3

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