分式通分1 3x平方与5 12xy最简公分母

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x/xy-y²与y/x²-xy 通分

x/(xy-y²)=x/[y(x-y)]y/(x²-xy)=y/[x(x-y)]∴公分母为:xy(x-y)通分后得x/(xy-y²)=x²/[xy(x-y)]y

分式通分:xy分之2,xy-x的平方分之3y

2/xy=2(y-x)/xy(y-x)3y/(xy-x^2)=3y^2/xy(y-x)如果不懂,请追问,祝学习愉快!

分式的约分与通分问题约分 (x²+xy)/(x+y)² x²-y²/(x&sup

(x²+xy)/(x+y)²分子提取公因式x=x(x+y)/(x+y)²分子分母同时除以(x+y)=x/(x+y)x²-y²/(x²-y&s

(x+y)的平方分之2xy与x的平方减y的平方分之x通分

通分为分母是(x+y)⒉(x-y),即为2xy(x-y)/(x+y)⒉(x-y)和x(x+y)/(x+y)⒉(x-y)

与分式y平方+xy-x平方分之y-x相等的分式有哪些

x-y=x/y两边同乘以y得xy-y^2=x移项xy-x=y^2即x(y-1)=y^2x=y^2/(y-1)

分式1/x平方+2x+1/x平方-x通分后的分母是?

1/(x²+2x)+1/(x²-x)=1/x(x+2)+1/x(x-1)=(x-1)/x(x+2)(x-1)+(x+2)/x(x+2)(x-1)通分后分母是x(x+2)(x-1)

数学分式通分与约分约分 (x²+xy)/(x+y)² x²-y²/(x²

约分(x²+xy)/(x+y)²=x(x+y)/(x+y)²=x/(x+y)x²-y²/(x²-y²)=1通分2xy/(x+y)&

2xy/(x+y)的平方与x/x的平方-y的平方.通分.

x²-y²=(x+y)(x-y)所以最简公分母(x+y)²(x-y)所以2xy/(x+y)²=2xy(x-y)/(x+y)²(x-y)x/(x&sup

2xy/(x+y)的平方与x/x的平方-y的平方.通分

2xy/(x+y)的平方=2xy(x-y)/(x+y)²(x-y)x/x的平方-y的平方=x(x+y)/(x+y)²(x-y)

分式约分:xy+x/x的平方+2x+1

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)

分式通分三道题2xy/(x+y)的平方和x/x的平方-y的平方x-y/2x+2y和xy/(x+y)的平方2mn/4m的平

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

1.2x+2y分之x-y 与(x+y)的平方分之xy 通分 2.4m的平方-9分之2mn 与 2m+3分之2m-3 通分

解最简公分母2(x+y)²,∴(x-y)/(2x+2y)=(x+y)(x-y)/2(x+y)²=(x²-y²)/2(x+y)²xy/(x+y)

通分(X+Y)平方分之2XY与X平方减Y平方分之X 说出他们的最简公分母是多少

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

通分:3y分之x与2y平方分之3x,a平方b分之6c与3ab平方分之c,2x+2y分之x-y与(x+y)平方分之xy 要

3y与2y²的最简公分母是6y²3y分之x=x/(3y)=(2y×x)/(2y×3y)=(2xy)/(6y²)2y平方分之3x=3x/(2y²)=(3×3x)/

约分:x的平方+xy除以(x+y)的平方 通分:2xy除以(x+y)的平方与x除以x的平方-y的平方

(x²+xy)/(x+y)²=x(x+y)/(x+y)²=x/(x+y)2xy/(x+y)²x/(x²-y²)∵最简公分母为:(x+y)&#

分式通分 分式ab/xy^2,bc/x(a-b),a/y(b-a)的最简公分母

分式ab/xy^2,bc/x(a-b),a/y(b-a)的最简公分母是:abc再问:可以写写过程吗再答:ab/xy^2=abc/xy²cbc/x(a-b)=abc/ax(a-b)a/y(b-

通分:x的平方-y的平方分之1 与 x的平方+xy分之1 没有的就别发了.速回 急用

x的平方-y的平方分之1=(x+y)(x-y)分之1x的平方+xy分之1=x(x+y)分之1提取(x+y)分之1,就可

“2x+2y分之x-y 与 (x+y)的平方分之xy” 这道题怎么通分?

公分母是2(x+y)^2(x-y)/(2x+2y)=(x-y)*(x+y)/2(x+y)*(x+y)=(x^2-y^2)/2(x+y)^2xy/(x+y)^2=2xy/2(x+y)^2