y厂x+x厂y/xy-y2-x+厂xy+y/x厂x-y厂y 化简

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/12 04:56:08

=√(xy)(√x+√y)/y(x-y)-(x+√(xy)+y)/(√x-√y)(x+√(xy)+y)
=√x/√y(√x-√y)-1/(√x-√y)
=(√x-√y)/√y(√x-√y)
=1/√y
=√y/y

xy-1+x-y x²/xy-x/y 化简xy-1-x+y （x^2+xy/x-y)/（xy/x-y)计算（xy-x^2)乘以(xy)/(x-y) 计算：(xy-x²)×x-y/xy 化简：x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y) 因式分解 x平方y(x-y)-xy平方(x-y) 因式分解：x×x-xy-2y×y-x-y 正整数x,y满足x2-y2=2xy,求x-y/x+y的值整数x,y满足x2-y2=2xy,求x-y/x+y的值化简(x平方-y平方)/(x+y)+(x平方-2xy+y平方)/(x-y)