计算:X^2-Y^2/X^2+2XY+Y^2除以X+2Y/2X^2+2XY

来源：学生作业帮编辑：搜搜考试网作业帮分类：数学作业时间：2024/07/28 19:21:27

原式
=(x+y)(x-y)/(x+y)² × 2x(x+y)/(x+2y)
=(x-y)/(x+y) × 2x(x+y)/(x+2y)
=2x(x-y)/(x+2y)
=(2x²-2xy)/(x+2y)

（x^2+xy/x-y)/（xy/x-y)计算 x-y/xy-y^2计算（xy-x^2)乘以(xy)/(x-y) 计算:X^2-Y^2/X^2+2XY+Y^2除以X+2Y/2X^2+2XY 计算：(x+y/x-y)÷(xy+x^2) 计算（xy-y^2)÷x-y/xy 计算3xy[2xy-x(y-2)+x-1] 计算：3xy[2xy-x（y-2）+x] 计算：y/(x的平方-xy)+2/(y-x)-x/(y的平方-xy) 计算3xy除以-3x分之2y 计算(x-y)(x^2+xy+y^2)得计算：(X+Y)(X^2-XY+Y^2)