> 其他 >
化简x/y(x+y)-y/x(x+y)
人气:427 ℃ 时间:2020-06-25 15:52:53
解答
x/y(x+y)-y/x(x+y) =x^2/xy(x+y) -y^2/xy(x+y) =x^2-y^2/xy(x+y) =(x+y)(x-y)/xy(x+y) =x-y/xy
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版