通分3y分之x
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1/(x-y)=(x+y)/(x²-y²)(xy+y²)/(x²-y²)=(xy+y²)/(x²-y²)
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!
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)
是3道题么?第一个(8x-1)/2x第二个(4x^2-x)/4第三个(4x^2-16x+3)/4再问:合起来的一道题通分:4-2x分之1x的平方-4分之xx的平方-4x+4分之3再答:16x-2/4x
最简公分母是2(x+y)²(x-y)/2x+2y=(x-y)/2(x+y)=(x-y)(x+y)/2(x+y)²xy/(x+y)²=2×xy/2(x+y)²=2
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)],
通分只限于两个数或两个是以上的数唉~
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)
显然,(x-1)*(x-2)=x²-3x+2所以通分分母是x²-3x+2就变成x²-3x+2分之4x,x²-3x+2分之x-2,x²-3x+2分之x-
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-y)/(x+y),x/(x²+xy)=1/(x+y),y/(x²-y²)=y/(x+y)(x-y)分母的最小公倍数是(x+y)(x-y)通分得:(x-y)/(x+y
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)/
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)
1/(X-Y)与2/(X^2-Y^2)分母最小公倍数为X^2-Y^2,所以第一个分式分子分母同乘X+Y
解x/y=3∴x=3y∴(x²+xy)/y²=(9y²+3y²)/y²=12y²/y²=12最简公分母(x-1)²(x+
2x+2分之x+2=(x+2)/2(x+1)=2(x²-4)/(4(x+1)(x-2),x²-x-2分之x=x/(x-2)(x+1)=4x/4(x+1)(x-2),4x-8分之3=
解(1):最简公分母是6(x+5)3分之x=x/3=2x(x+5)/[6(x+5)]6分之1-x=(1-x)/6=(1-x)(x+5)/[6(x+5)]x+5分之x平方-x=(x²-x)/(
(4-x的平方)分之(x的平方-2x)=x(x-2)/-(x+2)(x-2)=-x/(x+2)通分(y-x)分之1=2(x+y)(y-x)分之2(x+y)与(2x+2y)分之1=2(x+y)(y-x)
解最简公分母为x(x-y)(x+y)∴1/(x²-y²)=x/x(x²-y²)=x/x(x-y)(x+y)1/(x²+xy)=(x-y)/x(x+y)
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