分式的通分x-y分之a,3y-3x分之b,x平方-2xy y平方分之1
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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!
(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
你说对了,参考答案有问题,那个也是人做的,也有出错的时候
若是:①4x²-y²和②X/(3Y-6X),则公分母是3(y-6x);若是:①1/(4x²-y²)和②X/(3Y-6X),①=1/[(2x-y)(2x+y)],
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)
①:x/a(x-y)=xb/ab(x-y),y/b(y-x)=-y/b(-y)=-ay/ab(x-y);
x/(3y)的分母是3y3x/(2y²)的分母是2y²两个分式的最简公分母是6y²,通分:x/(3y)=x×2y/(3y×2y)=2xy/(6y²)3x/(2y
(x+3y)/(x²+xy)+(y-x)/(xy+y²)=(x+3y)[x(x+y)]-(x-y)/[y(x+y)]=[(x+3y)y-x(x-y)]/[xy(x+y)]=(xy+
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)/
解最简公分母为(x-y)(x+y)∴1/(x-y)=(x+y)/(x-y)(x+y)=(x+y)/(x²-y²)1/(x+y)=(x-y)/(x-y)(x+y)=(x-y)/(x&
x+y分之x-y=(x-y)²/(x+y)(x-y)x-y分之x+y=(x+y)²/(x+y)(x-y)
x/a(x-y)=xb/[ab(x-y)]y/b(y-x)=-ay/[ab(x-y)]————————————a/(y-x)=a/(x-y)=a(x+y)/[(x-y)(x+y)]b/(x-y)*(x
解x/y=3∴x=3y∴(x²+xy)/y²=(9y²+3y²)/y²=12y²/y²=12最简公分母(x-1)²(x+
请放心使用,有问题的话请追问采纳后你将获得5财富值.你的采纳将是我继续努力帮助他人的最强动力!再问:我们还没有学分式的除法,还有其他方法吗?再答:请放心使用,有问题的话请追问满意请及时采纳,谢谢,采纳
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-
约分:10x^4y^3z/-15x^2y^4z^2=-2x^2/3yzm^2-3m/9-m^2=-m/m+3通分:2/3a^2与1/-6ab^2通分后为4b^2/6a^2b^2与-a/6a^2b^22
y=4x带入3x-y=3x-4x=-xx+y=x+4x=5x(x+y)/(3x-y)=5x/(-x)=-5
(x+3y)/2x,换X为1/13*X,Y为1/13*Y,代入后值不变,利用分式的基本性质可得.