化简分式x-2分之2x-6÷{x-2分之5-x-2}的结果为-搜答案-大师作文网

2(2x+1)=74x+2=7x=5/4检验：x=5/4是方程的根∴方程的解是x=5/4再问：解分式方程3x+4/3x-5+1=4x+1/2x-3再答：再帮你解一题，请采纳，不要追问新题了，要想让我再

[1/(x-y)-1/(x+y)]÷2y/(x^2-2xy+y^2)=[(x+y)/(x+y)(x-y)-(x-y)/(x+y)(x-y)]÷2y/(x-y)^2=[(x+y-x+y)/(x+y)(x

3/x-4/(x-1)=-6/x(x-1)两边乘x(x-1)3(x-4)-4x=-63x-12-4x=-6x=-6经检验,x=-6是方程的解

您好：原式=1/（x+1）（x+2）+1/（x+2）（x+3）+1/（x+3）（x+4）=1/(x+1)-1/(x+2)+1/(x+2)-1/(x+3)+1/(x+3)-1/(x+4)=1/(x+1)

原式=[x²/(x-1)]-x-1=[x²/(x-1)]-[(x+1)(x-1)]/(x-1)=[x²/(x-1)]-(x²-1)/(x-1)=[x²

(x²-2x)/(2y-xy)=x(x-2)/y(2-x)=-x/y如果不懂,请追问,祝学习愉快!

(4-x²)/(x²y-2xy)=-(x²-4)/(x²y-2xy)=-(x+2)(x-2)/xy(x-2)=-(x+2)/xy愿对你有所帮助!

第一步：3X(X+1)/(X+1)(X-1)-X(X-1)/(X+1)(X-1)（除号前面部分）=（4X²+4X）/（X+1）(X-1)=（4X²+4X）/X²-1第二步

无意义则分母x+1=0x=-1所以原式=5/(4m+2)-1/(2m+1)=(5-2)/(4m+1)=3/(4m+1)

2x/(x+2)-1=(2x-x-2)/(x+2)=(x-2)/(x+2)再问：第二部怎么来的再答：1=(x+2)/(x+2)2x/(x+2)-(x+2)/(x+2)通分=[2x-(x+2)]/(x+

@“理科家教”为你答疑（x²-1）分之（x²+x）=[（x+1）（x-1）]分之[x(x+1)]=（x-1）分之x@若不清楚欢迎追问,懂了请及时采纳!祝你学习进步!

x/(x-5)=(x-2)/(x-6)两边同乘惟(x-5)(x-6)x(x-6)=(x-2)(x-5)x^2-6x=x^2-7x+10x=10检验,代回到方程左边=10/(10-5)=2右边(10-2

9x^3y^2分之12x^2y^3分子分母同除以3x²y²=3x分之4yx^2分之x^2-6x+9这个是最简了x^2-8x+16分之x^2-4x=(x-4)²分之x(x-

(x^2-1)/(x^2-2x+1)=[(x+1)(x-1)]/(x-1)^2=(x+1)/(x-1)

当x+2不=0,即X不=-2时,有意义.再问：我写错了，应该是当x()时,分式2+x分之x无意义再答：是的，当X=-2时，分式2+X分之X无意义。

这个简单啊!3/2-1/(3x-1)=5/(6x-2)先去分母,都乘上6x-22分之3×（6x-2）-（3x－1）分之1×（6x-2）=（6x－2）分之5×（6x-2）2分之18x-6-2=59x-3

X=4原式=(X-1)/(X-2)-(X-2)/(X-3)=(X-4)/(X-5)-(X-5)/(X-6)左边通分=[X^2-4X+3-X^2+4X-4]/[(X-2)(X-3)]=-1/[(X-2)