48/x+y +8/x-y=1024/x+y+14/x-y=14求这两个联立方程.怎么解,

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 化简 x / y(x+y) - y / x(x+y) = (X+y )²-8(x+y)+48 (x-8y)(x+y) x(x+y)(x-y)-y(y+x)(y-x)=(x-y)( )填空 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) y=x(x 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= (x+y)^2-8(x+y)+48= (x+y)^2-8(x+y)+48= {(x,y) |x|+|y| x>y?x:y y+y+x=10,x+y+x=8,y=?,x=? 已知x-y=8,（x+y)(x-y)=32,求x,y的值 x+x+x+x+y+y+y=56 X+Y-8X+10Y+41=O,求X/Y-Y/X的值 Y+X+X=36 Y-X-X=8 X=?Y=? 若x+y=8,x²-y²=48,则y-x=