搜狗做题网[(-2x-y)^2-(2x+y)(2x-y)]÷2y-1/2y
![[(-2x-y)^2-(2x+y)(2x-y)]÷2y-1/2y](/uploads/image/z/19948344-24-4.jpg?t=%5B%28-2x-y%29%5E2-%282x%2By%29%282x-y%29%5D%C3%B72y-1%2F2y)
[(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y
1、x(x-y)(x+y)-x(x+y)^2
(1)(x^2/x)-y-x-y
[x(x-y)-y(x-y)+(x+y)(x-y)]÷2x其中x=2012 y=2013
1.[(x-y)^2-2(y -x)]÷(x-y)
(1)(x+y)^2-(x-y)^2
1、(x-2y)(x+y)
【(x-y)^2+(x+y)(x-y)】除以 2x
x^2-y^2/x+y-4x(x-y)+y^2/2x-y,
(x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)分解因式
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
【x-3y][x+y]-[x-2y][x +2y]-[x-y