1、x(x-y)(x+y)-x(x+y)^22、(2a+b)(2a-3b)-3a(2a+b)
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1、x(x-y)(x+y)-x(x+y)^22、(2a+b)(2a-3b)-3a(2a+b)1、x(x-y)(x+y)-x(x+y)^22、(2a+b)(2a-3b)-3a(2a+b)1、x(x-y)
1、x(x-y)(x+y)-x(x+y)^22、(2a+b)(2a-3b)-3a(2a+b)
1、x(x-y)(x+y)-x(x+y)^2
2、(2a+b)(2a-3b)-3a(2a+b)
1、x(x-y)(x+y)-x(x+y)^22、(2a+b)(2a-3b)-3a(2a+b)
1) x(x-y)(x+y)-x(x+y)^2
=x((x-y)(x+y)-(x+y)^2)
=x(x^2-y^2-x^2-2xy-y^2)
=x(-2xy-2y^2)
=-2xy(x+y)
2) (2a+b)(2a-3b)-3a(2a+b)
=(2a+b)(2a-3b-3a)
=(2a+b)(-a-3b)
=-(2a+b)(a+3b)
{(x,y) |x|+|y|
x>y?x:y
(x+y)(x-y)+4(y-1)
x^/y-x-y^/y-x化简.
化简x(y-x)-y(x-y)
行列式计算 x y x+y y x+y x x+y x y|x y x+y ||y x+y x ||x+y x y |
y/(x+y)-x/(x-y)
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
因式分解x(x+y)(x-y)-x(x+y)^2
x(x+y)(x-y)-x(x+y)的平方
x(x+y)(x-y)-x(x+y)² 因式分解
x y x+yy x+y xx+y x y
(3x-y)(3y+x)-(x-y)(x+y)
化简x/y(x+y)-y/x(x+y)
化简 x / y(x+y) - y / x(x+y) =
化简:(x+ y)(x-y) +(x+ y) +(x-y)
x+y
(x+y)