[(x+y)平方-y(2x+y)-8x]除以2x

化简(x平方-y平方)/(x+y)+(x平方-2xy+y平方)/(x-y) (x+y+8)的平方-(x-y-2)的平方 16-8(x-y)+(x-y)平方 (y-x)平方-2(x-y)因式分解 化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方 计算：-(X-Y)的平方-2(Y-X)的平方-5(X-Y)的平方+8(X-Y)的平方 2(x+y)平方(x-y)-4(x+y)立方 计算 {2(x-y)的平方-8(x-y)的平方(x+y)+6y(x-y)的平方}÷2(x-y)的平方 等于 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) x(x+y)(x-y)-x(x+y)的平方 (x-y)的平方+7（x+y)-11（x-y)的平方-8（x+y) 2(y-x)的平方-7(x-y)+6(x-y)-3(y-x)的平方 (x+3y)的平方+2(x-y)(x+y)+(x-3y)的平方 [(x+y)平方-y(2x+y)-8x]除以2x [（2x+y）的平方-y（y++4x）-8x]/2x (x+y)(x-y)+(x-y)平方-(x-y)(3x-y) 其中x=-2 y=3分之一 因式分解：(x-y)的平方-8(x-y-2)等于? (x-2y)的平方+16y-8x+16