x-1 x的平方-9分之2x-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)]

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)/

=(x+2)(x-1)/(x-3)×(x-3)²/(x+2)=(x-1)(x-3)=x²-4x+3

=2x/x²-(2x-1)/x²=(2x-2x+1)/x²=1/x²

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

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平方-6x+8=x²-2×3x+9-9+8=（x-3）²-1=（x-3-1）（x-3+1）=（x-4）（x-2）x平方+x-6=（x-2）（x+3）12+x-x平方=（4-x）（

(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

=x/(x+2)(x-2)-(x-2)/(x+2)(x-2)=[x-(x-2)]/(x+2)(x-2)=2/(x²-4)

(x²-6x+9)/(x+1)÷(x²-9)/(x²+x)=[(x-3)²/(x+1)]×[x(x+1)/(x+3)(x-3)]=x(x-3)/(x+3)x的平

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+

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

x的平方+3X分之X的平方+8X+X的平方+6X+9分之X的平方-9=x(x+3)分之x(x+8)+(x+3)²分之(x+3)(x-3)=(x+3)分之(x+8)+(x+3)分之(x-3)=

(x的平方-9)分之(2x-6)+(x+3)(x-2)分之(x的平方+2x+1)/(x-2)分之(x+1)=2(x-3)/(x+3)(x-3)+(x+1)²/(x+3)(x-2)×(x-2)

原式=6/x^2-9-x-1/6-x2=1/2即12+(x-1)(x+3)/2(x+3)(x-3)=1/2即(x-3)(x+4)=0∴x=3(舍)或x=-4很高兴为您解答,【学习宝典】团队为您答题.请

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

1/(x²-6x+9)+x/(9-x²)+1/(2x+6)=1/(x-3)²-x/[(x+3)(x-3)]+1/[2(x+3)]=[2(x+3)-2x(x-3)+(x-3