1、x(x-y)(x+y)-x(x+y)^2

来源：学生作业帮编辑：灵鹊做题网作业帮分类：数学作业时间：2024/04/19 07:14:07

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)^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)

1、x(x-y)(x+y)-x(x+y)^2 (1)(x^2/x)-y-x-y {(x,y) |x|+|y| x>y?x:y [(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y (1)(x+y)^2-(x-y)^2 1、(x-2y)(x+y) 【(x-y)^2+(x+y)(x-y)】除以 2x y=(x^2+x)/(x+1) 先化简再求值(x-y)(x+y)-(x-2y) 的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2 y 1) (2x+5y)(2x-5y)(-4x^2-25y^2) 2) [（x+y)(x-y)-(x-y)^2+2y(x-y 因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(