|3/2x-6 |+【0.2+2y】^2 =0,则x^2+y^2=

[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) 3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少? 因式分解3x^2(x-y)+6x(y-x) 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= 2(2x+3y)(3x+2y)-(6x-y)(2x-5y) x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2 4x-3y/x-2y÷6y-8x/y-2x 3(x-y)^2-7(x-y)+8(y-x)^2+6(y-x)合并同类项. （x+y）/2- x-y/2=6 3(x+y)=4(x-y) x+y/3+x-y/2=6 4(x+y)-2(x-y)=40 x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20 {(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20 4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6 [12(x+y)^3+3(x+y)(x-y)^2]÷6(x+y) 2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51 若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1