80/(x+y) + 48/(x-y) =9 64/(x+y) + 96/(x-y) =12 怎样解,要过程,希望各大侠指点
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 14:34:50
![80/(x+y) + 48/(x-y) =9 64/(x+y) + 96/(x-y) =12 怎样解,要过程,希望各大侠指点](/uploads/image/z/2989842-42-2.jpg?t=80%2F%28x%2By%29+%2B+48%2F%28x-y%29+%3D9+64%2F%28x%2By%29+%2B+96%2F%28x-y%29+%3D12+%E6%80%8E%E6%A0%B7%E8%A7%A3%2C%E8%A6%81%E8%BF%87%E7%A8%8B%2C%E5%B8%8C%E6%9C%9B%E5%90%84%E5%A4%A7%E4%BE%A0%E6%8C%87%E7%82%B9)
80/(x+y) + 48/(x-y) =9 64/(x+y) + 96/(x-y) =12 怎样解,要过程,希望各大侠指点
80/(x+y) + 48/(x-y) =9 64/(x+y) + 96/(x-y) =12 怎样解,要过程,希望各大侠指点
80/(x+y) + 48/(x-y) =9 64/(x+y) + 96/(x-y) =12 怎样解,要过程,希望各大侠指点
移项,合并同类项
{(x,y) |x|+|y|
x>y?x:y
(X+y )²-8(x+y)+48
x^/y-x-y^/y-x化简.
化简x(y-x)-y(x-y)
行列式计算 x y x+y y x+y x x+y x y|x y x+y ||y x+y x ||x+y x y |
y/(x+y)-x/(x-y)
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
x y x+yy x+y xx+y x y
(3x-y)(3y+x)-(x-y)(x+y)
化简x/y(x+y)-y/x(x+y)
化简 x / y(x+y) - y / x(x+y) =
化简:(x+ y)(x-y) +(x+ y) +(x-y)
x+y
(x+y)
|x+y|
x y x+yy x+y xx+y x y
化简y(x+y)+(x+y)(x-y)-x^2