x-3分之1-x的平方-9分之6

（3-x分之x-1）平方÷（x平方-6x+9分之9-x平方）平方*x平方-2x+1分之6+2x=[(x-1)/(3-x)]²÷[(9-x²)/(x²-6x+9)]

是求X的值吗?不晓得对不对哈,姑且一看吧　　由已知可得：

x+3分之x+x平方-9分之6等于x-3分之1两边乘（x+3）（x-3）x(x-3)+6=x+3x²-3x+6=x+3x²-4x+3=0(x-3)(x-1)=0x1=3x2=1由于

x的平方-9分之1-x-3分之1除以x-1分之6+2x=1/(x^2-9)-1/(x-3)*(x-1)/2(3+x)=(2-(x-1))/2(x^2-9)=(3-x)/2(x^2-9)=-(x-3)/

1/3[1/x--1/(x+3)]+1/3[1/(x+3)--1/(x+6)]+1/3[1/(x+6)--1/(x+9)]=1/(x^2+18)1/x--1/(x+9)=3/(x^2+18)(x+9)

原式=1/(x+1)*[(x-3)/(x+3)^2+2/(x+3)]-x/(x+3)(x-3)=1/(x+1)[3(x+1)/(x+3)^2]-x/(x+3)(x-3)=3/(x+3)^2-x/(x+

)【(x²-2x+1)/(x²-1)】÷【(x-1)/(x²+x)】=【(x-1）²/(x+1)（x-1)】÷【(x-1)/x(x+1)】=【(x-1）/(x+

x-3分之5-x方-9分之x-2+2x-6分之x-1=5/(x-3)-(x-2)/(x^2-9)+(x-1)/2(x-3)=(10(x+3)-2(x-2)+(x-1)(x+3))/2(x+3)(x-3

[(x的平方-3x)分之(x+3)-(x的平方-6x+9)分之(x-1)]÷x分之(x-9)=[(x+3)/(x^2-3x)-(x-1)/(x^2-6x+9)])]÷[(x-9)/x]=[(x+3)/

1：2分之3X的平方-{-2分之1X平方}+{-2X平方}=3x²/2+x²/2-2x²=4x²/2-2x²=2x²-2x²=02

x的平方-2x+1分之x-3÷x-1分之x的平方-9=[(x-3)/(x-1)²]*[(x-1)/(x+3)*(x-3)]=1/(x-1)(x+3)

(x²+6x+9)分之(x-3)+(9-x²)分之x=(x²+6x+9)分之(x-3)-(x²-9)分之x=(x+3)²分之(x-3)-[(x+3)(

x+2/（x的平方-2x）-（x-1）/（x的平方-4x+4）=x+2/（x(x-2)）-（x-1）/（x-2）^2=(x^2-4-(x^2-x))/x(x-2)^2=(x-4)/x(x-2)^2

2/(x+3)(x-3）+(x-2)/x(x-3)=1/x(x+3)两边乘x(x+3)(x-3)2x+x^2+x-6=x-3x^2+2x-3=0(x+3)(x-1)=0x+3在分母,不等于0所以x=1

(x+3)分之1-(x-3)分之1=(x²-9)分之2x两边同时乘以(x+3)(x-3)得(x-3)-(x+3)=2x-6=2xx=-6÷2x=-3很高兴为您解答,【学习宝典】团队为您答题.

原式=1/(x+1)*[(x-3)/(x+3)^2+2/(x+3)]-x/(x+3)(x-3)=1/(x+1)[3(x+1)/(x+3)^2]-x/(x+3)(x-3)=3/(x+3)^2-x/(x+

x+x分之1=3所以x0X^2-3X+1=0X=(=(3+根号下5)/2或=(3-根号下5)/2x的平方+9x-3分之x的平方=2/3X^2+9x把X^2=1-3x代入得2/3-2X+9x=2/3+7

原式=1/(x-3)-1/2(x+3)-x/(x-3)²=[2(x+3)(x-3)-(x-3)²-2x(x+3)]/[2(x+3)(x-3)²]=(2x²-18

两边乘以x(x-1)得3(x-1)+6x=73x-3+6x=79x=10x=10/9经检验：x=10/9是方程的解