由X/Y=2Y/X-Y 怎么解得x=2y?
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 04:02:17
x){>ec~Q~n³';;^,_t
[J{"}jl3 }cɋ};Ҁ(QS64֍ ua`^HMHMȳΆ'F
x1-h~qAbԥ6` p }
由X/Y=2Y/X-Y 怎么解得x=2y?
由X/Y=2Y/X-Y 怎么解得x=2y?
由X/Y=2Y/X-Y 怎么解得x=2y?
X/Y=2Y/X-Y
两边乘Y(X-Y(
X²-XY=2Y²
X²-XY-2Y²=0
(X-2Y)(X+Y)=0
所以X=2Y或X=-Y
X/Y=2Y/X-Y
两边乘Y(X-Y(
X²-XY=2Y²
X²-XY-2Y²=0
(X-2Y)(X+Y)=0
所以X=2Y或X=-Y