搜狗做题网(x+y)^2-16(x-y)^2
(x+y)^2-16(x-y)^2
1、x(x-y)(x+y)-x(x+y)^2
(1)(x^2/x)-y-x-y
【(x-y)^2+(x+y)(x-y)】除以 2x
[(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y
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
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【-
[x(x-y)-y(x-y)+(x+y)(x-y)]÷2x其中x=2012 y=2013