(x+2y)/(x^2 - y^2) - (x+2y)/(x^2 - y^2) - (2x-3y)/(y^2 - x^2)_数学解答

(x+2y)/(x^2 - y^2) - (x+2y)/(x^2 - y^2) - (2x-3y)/(y^2 - x^2)

人气：351 ℃　时间：2020-03-22 11:06:02

解答

(x+2y)/(x^2 - y^2) - (x+2y)/(x^2 - y^2) - (2x-3y)/(y^2 - x^2)=(2x-3y) /(x+y)(x-y)
麻烦采纳,谢谢!