（x^2+xy/x-y)/（xy/x-y)计算

来源：学生作业帮助网编辑：作业帮时间：2024/04/28 00:57:09

（x^2+xy/x-y)/（xy/x-y)计算
（x^2+xy/x-y)/（xy/x-y)计算

（x^2+xy/x-y)/（xy/x-y)计算
【x²+xy/（x-y）】/【xy/（x-y）】
=【x²（x-y）/（x-y）+xy/（x-y）】/【xy/（x-y）】
={【x²（x-y）+xy】/（x-y）}/【xy/（x-y）】
=【x²（x-y）+xy】/xy
=【x（x-y)】/y+1
=（x²-xy）/y+1
=x²/y-x+1

(X^2-XY+Y)/Y

下面是0 有意义吗？用配方可以做吗？有点。。。

（x^2+xy/x-y)/（xy/x-y)
=（x^2+xy)/（xy)
=x（x+y)/（xy)
=(x+y)/y
=x/y+1

（x^2+xy/x-y)/（xy/x-y)
=（x^2+xy)/（xy)
=(x/y)+1

（x^2+xy/x-y)/（xy/x-y)计算 |x|/x+y/|y|+xy/|xy|= x^2-xy/xy-y^2约分 (-x-y)(x^2+xy+y^2) 化简x^-y^/x^-2xy+y^ 2*(x-y)²(y-x)(xy) .(x+y-2)(x+y-2xy)+(xy-1)^2 (x^2-xy)y÷y-x/xy怎么做? 【x(xy-xy)-y(x-xy)】÷3xy -x-3xy+y xy-1+x-y 集合{(x,y)|xy （y/(x^2-xy)+x/(y^2-xy))除以(x-y)/(xy) 代数 x^-y^/ x^-(y-z)^ 除以 x^+2xy+y^/(x-y)^-z^ 乘 x^+xy-xz/x^-xy 计算：(xy-x²)×x-y/xy 【xy-x²】*xy/x-y (xy-x²)÷(x²-2xy+y²/xy)×（x-y/x²） x-y/x²÷x²-2xy+y²/xy*（xy-x²）