分式X-2＼X-1,X-2＼X2加2X加1,2-X＼X2-X

原分式方程化为：2x+1x(x+1)＝56(x+1)，方程的两边同乘6x（x+1），得6（2x+1）=5x，解得x=-67．检验：把x=-67代入6x（x+1）≠0，即x=-67是原分式方程的解．则原

（1-x）/（x²+x-2）÷[(x²-1)/(x+2)]=-(x-1)/[(x-1)(x+2)]÷[(x-1)(x+1)/(x+2)]=-1/(x+2)×(x+2)/[(x-1)

X*X-3X+2不等于0(x-2)(x-1)不等于0x不等于2且x不等于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

分式x+5/(x+1)(x+2)有意义,则分母不为0,即x≠-1且x≠-2x的绝对值+2/(x-2)(x+3)值为零,不可能吧5-x/x^2值为正数,则5>x/x^2,分母x^2大于0（不能等于0）,

1,(X×3X)/3X+1/3X=(3X^2+1)/3X2,X/2X+(6×2X）/2X=(X+12X)/2X=13/23,(X-1)/X^2-[(9×X^2)/X^2]=[X-1-(9X^2)]/X

xy+x/x的平方+2x+1=x(y+1)/(x+1)^2不能继续约分了题目如果是xy+y/x的平方+2x+1=y(x+1)/(x+1)^2=y/(x+1)

(x-9)/(x-7)-(x+1)/(x-1)=(x-8)/(x-6)-x/(x-2)[(x-9)(x-1)-(x+1)(x-7)]/[(x-7)(x-1)]=[(x-8)(x-2)-x(x-6)]/

7/(x^2+x)+3/(x^2-x)=6/(x^2-1)7/x(x+1)+3/x(x-1)=6/(x-1)(x+1)分子分母同乘以x(x-1)(x+1),得7（x-1）+3（x+1)=6x10x-4

2x/x²-1=2X/x²-11/x+1-x/x-1={(X-1)-X((X+}/X²-12x/(x²-1)÷{1/(x+1)-x/(x-1)}=2X/x

(1)化简分式(x^2-1/x^2+2x+1)-(x+1/x-1)=(x+1)(x-1)/(x+1)^2-(x+1)/(x-1)=(x-1)/(x+1)-(x+1)/(x-1)=[(x-1)^2-(x

即1/x-1/(x+1)+1/(x+1)-1/(x+2)+1/(x+2)-1/(x+3)+...+1/(x+9)-1/(x+10)=5/121/x-1/(x+10)=5/12两边乘12x(x+10)1

1.A.(X^2)/X=X或-XB.(X-2)/(X+1),是最简分式C.X/(X-1)是最简分式D.(2X+2)/(4X)=(X+1)/(2X)你是不是写错了?B和C都是最简分式2.A.(M^2-N

=(x+2)/x(x-2)-(x-1)/(x-2)²=(x+2)(x-2)/x(x-2)²-x(x-1)/x(x-2)²=(x²-4-x²+x)/x(

(x-2)/(x+2)=(x+2)/(x-2)+16/(x²-4)方程两边同时乘(x²-4)(x-2)²=(x+2)²+16x²-4x+4=x

解答过程如下：

你好,我认真解答了这道题,看最终没有实数解啊.我希望能帮到你

原式=(X+1)(X-1)/(X+1)^2=(X-1)/(X+1)

X-1/X-2-(X-2)/(X-3)=(X-5)/(X-6)-(X-6)/(X-7)(X-1)(X-3)-(X-2)²/（X-2）（x-3）=（X-5)(X-7)-(X-6)²/

【参考答案】原式=[(x^2+x)/(x^2-1]-[x^2/(x^2-2x+1)]=[(x^2+x)(x-1)/(x^2-1)(x-1)]-[x^2(x+1)/(x^2-2x+1)(x+1)]=[(