(x+2y)(x+2y)-(x+2y)(x+2y)

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/11/09 05:52:29

(2x+y)²-(x+2y)²

解题思路：本题主要考查整式的运算，完全平方公式和平方差公式。
解题过程：
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最终答案：略

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 (2x-y)^2-4(x-y)(x+2y)