y=[(x^2) -2x +1]^10 求函数导数

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 {4x-3y-10=0 3x-2y=0,{3x-4(x-y)=2 2x-3y=1,{2(x+y)-(x-y)=3 (x+y)-2(x-y)=1 已知x+y=a,2x-y=-2a,求[（x/y-y/x)/(x+y)-x(1/x-1/y)]/[(x+1)/y]的值 若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值 2y(x+二分之一y)-[(x+y)(x-y)+2y(y+x)],其中|x-1|=2 （x-y)(x+y)-(x+y)^2+2y(y-x),其中x=1,y=3. 25（x+y)^2+10(y-x)+1=?因式分解 25(x-y)^2+10(y-x)+1= x-y/7 - x+y/10 =1/2 2(x-y)-5(x+y)=3修改、、、、（x-y)/7-(x+y)/10=1/2 2(x-y)-5(x+y)=3 10X+Y+1/3Z=10Y+X 10X+Y+2/3Z=100X+Y 2/x-y + 6/x+y = 11/10 分式方程组 4/x-y - 6/x+y =1/10 { x-y/7-x+y/10=1/2 {2(x-y)+5(x+y)=3 解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12) { x-y/7-x+y/10=1/2 {2(x-y)+5(x+y)=3 解方程：（x+3)(y-2)=(x-3)(y+10) (x-1)(y+3)=(x+2)(y+12) 25(x-y)*2+10(y-x)+125（x-y)^2+10(y-x)+1 10/x+y+3/x-y=-5 15/x+y-2/x-y=-1（用换元法解此方程组） 解分式方程：10/(x+y)+3/(x-y)=-5,15/(x+y)-2/(x-y)=-1