括号x-x分之1除以x平方-x分之x平方-2x加1-搜答案-搜搜考试网

[(x²-2x)分之(x+2)]÷[(x²-2x)分之(x-4)]=[(x²-2x)分之(x+2)]×[(x-4)分之(x²-2x)]=(x-4)分之(x+2)

x-1分之根号下x-1除以根号下x平方-x分之1=1/√（x-1)÷√（x³-1）/x=1/√（x²+x+1)/x=x/√（x²+x+1)∵x-1>0,∴x>1x=2原式

x+2分之x平方-2x-x-1分之x平方-4X+4除以x平方-16分之x平方+4x=x(x-2)/(x+2)÷(x-2)^2/(x-1)÷[x(x+4)/(x+4)(x-4)]=[x(x-2)/(x+

[x的平方-x分之x+1-x的平方-2x+1分之x]除以x分之1=[(x+1)/x(x-1)-x/(x-1)²]×x=(x+1)/(x-1)-x²/(x-1)²=(x&#

第一题(2x+2)/(2x^2-2x-1)第二题(a-3)/(18-2a^2)你还是发图吧,太抽象了!再问：哥哥你第一题看错了吧再答：第一题2/(x-1)真是的，所以叫你发图啦，这回对了没啊！再问：第

[x/(x+3)+6x/(x+3)(x-3)]×(x+3)(x-3)=x(x-3)+6x=x-3x+6x=x+3x

化简结果x/(x+1)

原式=[(x²+2x)/(x²+4x+4)]÷[(2x²-8)/(3x+6)]÷[1/(x²-4)]=[x(x+2)/(x+2)²]÷{2(x+2)(

x+2分之x-x+2分之x平方+2x+1除以x-1分之x平方-1=[x/(x+2)-(x²+2x+1)/(x+2)]÷(x²-1)/(x-1)=[(x-x²-2x-1)/

原式=[(1-1分之x+5)-(1-1分之x+4))+(1-1分之x+3)-(1-1分之x+2)]*[(x+3)(x+5)]\(x^2+7x+13)=[(1分之x+2)-(1分之x+3)+(1分之x+

x的平方-2x+1分之x²-1+x-2分之2x-x²除以x=（x+1）（x-1）/（x-1）²-x(x-2)/(x-2)÷x=（x+1）/(x-1)-1=(x+1-x+1

[x的平方-x分之x+1-x的平方-2x+1分之x]除以x分之1=[(x+1)/x(x-1)-x/(x-1)²]×x=(x+1)/(x-1)-x²/(x-1)²=(x&#

=[(x+1)(x-1)/(x-1)²-(x-1)/(x+1)]×(x-1)/x=[(x+1)²-(x-1)²]/(x+1)(x-1)×(x-1)/x=4x/(x+1)(

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

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

(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

2x分之x的平方-4x+4除以x平方分之x的平方-2x+1等于2分之x,当x=0或2时,分式无意义

[(x²-4x+4)/(2x)]÷[(x²-2x+1)/x²]=[(x-2)²/(2x)]/[(x-1)²/x²]=(x-2)²x

x的平方-1分之x除以x的平方分之x的平方=x²-(x/1)/(x²/x²）=x²-(x)/1=x²-x