[2x-(x+y)(x-y)](yy-xx)
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/25 14:35:07
[2x-(x+y)(x-y)](yy-xx)[2x-(x+y)(x-y)](yy-xx)[2x-(x+y)(x-y)](yy-xx)[2x-(x+y)(x-y)](yy-xx)=(2x-xx+yy)(
[2x-(x+y)(x-y)](yy-xx)
[2x-(x+y)(x-y)](yy-xx)
[2x-(x+y)(x-y)](yy-xx)
[2x-(x+y)(x-y)](yy-xx)
=(2x-xx+yy)(yy-xx)
=2xyy-2xxx-xxyy+xxxx+yyyy-yyxx
=xxxx+yyyy-2xxyy+2xyy-2xxx
x y x+yy x+y xx+y x y
x y x+yy x+y xx+y x y
[2x-(x+y)(x-y)](yy-xx)
(x-y)(x+y)(xx-yy)=?
XX-YY/(X-Y)(X-Y)约分
xx-yy-x-y 因式分解
求解：X+YY'=X(X^2+Y^2)
已知2x=3y,求xy/xx+yy-yy/xx-yy的值
用行列式性质计算下列行列式x y x+yy x+y xx+y x y
因式分解：xx-2x-2yy+4y-xy
求微分方程yy'+(y')^2=2x的通解,
分解因式：x-y-xx+2xy-yy+2
y*2对x的求导如何得出2yy'
求微分方程(y-xy')/(x+yy')=2的通解
xx-2xy+yy+4x-4y+4
xx+4xy+yy-2x-4y+6 因式分解
xx+12*12=yy(y-x=2)
xy+yy=10,x/2+y/3=6