3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分:3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25

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3x/6x^2za+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+43x/6x^2za+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-

3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分:3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25
3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+4
3x/6x^2z
a+b/a^2-b^2
x^2+2x+1/x^2+x
3x-6/x^2-4x+4
y-x/x^2-y^2
2x^2-10x/x^2-10x+25
约分:
3x/6x^2z
a+b/a^2-b^2
x^2+2x+1/x^2+x
3x-6/x^2-4x+4
y-x/x^2-y^2
2x^2-10x/x^2-10x+25

3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分:3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25
3x/6x^2z =1/2xz
a+b/a^2-b^2=(a+b)/(a+b)(a-b)=1/(a-b)
x^2+2x+1/x^2+x=(x+1)²/x(x+1)=(x+1)/x
3x-6/x^2-4x+4=3(x-2)/(x-2)²=3/(x-2)
y-x/x^2-y^2=-(x-y)/(x+y)(x-y)=-1/(x+y)
2x^2-10x/x^2-10x+25=2x(x-5)/(x-5)²=2x/(x-5)

急A={X/X=2K,X属于Z},B={X/X=3K,X属于Z},C={X/X=6K,X属于Z}.A并B?A交B?A交C? 已知集合A={x|x=a+ ,a∈Z},B={x|x= ,b∈Z},C={x|x= ,c∈Z},试判断A、B、C满足的关系已知集合A={x|x=a+1/6 a∈Z},B={x|x=b/2-1/3 b∈Z},C={x|x=c/2+1/6 c∈Z},试判断A、B、C满足的关系 因式分解x(a-b)+y(b-a)-z(a-b) (a-3)-(2a-6) 判断集合的关系 A={x|x=a+1/6;a∈z} B={x|x=b/2-1/3;b∈z} C={x|x=c/2+1/6;c∈z} (1) (a+2b/a-b)+(b/b-a)-(2a/a-b); (2) (y/x-y+z)+(2x+z/y-x-z)-(y-z/y-x-z); (3) (2/2a+3)+(3/3-2a)+(2a+15/4a^2-9); (4) (1/1-x)-(1/1+x)-(2x/1+x^2)+(-4x^3/1+x^4) (a-b)(x+3)-(b-a)(y+2)+(a-b)(5-z) (x+y+z)^2-(x-y-z)^2(a-b)^n+2 -(a-b)^n (a-b)+(-2a-b)=?(x+y-z)+(x-y+z)-(x-y-z)=? 比例中项2 (6 21:24:27)已知x:a=y:b=z:c,且a+b+c不等于零,求证(x:a)3+(y:b)3+(z:c)3=3(x+y+z:a+b+c)3 (x+y-z)+(x-y+z)-(x-y-z)和a-2(2a+b)+3(a-b)怎么写 要过程先去括号 再合并同类项 (a-b+c)(-a+b+c)(3a+b-2)(3a-b+2)(x+2y-3z)(x-2y+3z) 已知集合A={x|x=a+1/6,a属于Z},B={x|x=b/2-1/3,b属于z},C={x|x=c/2+1/6,c属于z},集合ABC的关系1.A等于B属于C 2.A属于B等于C 3.A属于B属于C4.B属于C属于A 3x/6x^2z a+b/a^2-b^2 x^2+2x+1/x^2+x 3x-6/x^2-4x+43x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25约分:3x/6x^2z a+b/a^2-b^2x^2+2x+1/x^2+x3x-6/x^2-4x+4y-x/x^2-y^22x^2-10x/x^2-10x+25 已知A=x|x<4,x∈z,B=X|X>-2,X∈z 则A∩B=( ),A∪B=( ) 定义集合A*B={Z|Z=XY,x∈A,Y∈B},A={X|X^2-3X+2 定义集合A@B={Z|Z=XY,x∈A,Y∈B}A={X|X^2-3X+2 计算下面的分式题.急,我是初一的,1、(y-z)(z-x)/[(x+z-2y)(x+y-2z)]+(z-y)(x-z)/[(x+y-2z)(y+z-2x)+(x-z)(y-z)]/[(y+z-2x)(x+z-2y)]2、若a/b=b/c=c/d=d/a,则(a-b+c-d)/(a+b-c+d)的值.3、若x/(x^2-mx+1)=1,求x^3/(x^6-m^3x^3+1)的值.4、如果 (x+y)²+2(y-x) 因式分解 怎么弄 我这还有几道题(x+y)²-(x+y)(x-z)+(x+y)(y+z)X(X-a)(x-b)-y(a-x)(b-x)x(x+y)(x-y)-x(x+y)²(2a+b)(2a-3b)-3b(2a+b)(a+b)²-9(a-b)²(a²+b²)²-a²b²9(x-y)-y&